Osman Temizöz | Selcuk University (Selçuk Üniversitesi) (original) (raw)

Papers by Osman Temizöz

Research paper thumbnail of Hypertrophic Pyloric Stenosis: MR Findings

Electronic Journal of General Medicine, 2006

Infantile hypertrophic pyloric stenosis (IHPS) is a condition affecting young infants, in which t... more Infantile hypertrophic pyloric stenosis (IHPS) is a condition affecting young infants, in which the antropyloric portion of the stomach becomes abnormally thickened and manifests as obstruction to gastric emptying. The clinical diagnosis hinges on palpation of the thickened pylorus, or "olive." Abdominal palpation is accurate but not always successful, in such cases, radiologic examinations including US or MRI can be performed. US is the first choice of imaging modality. Unfortunately, in case of difficulty by the sonographic diagnosis of IHPS such as overlying bowel gas, MRI could be useful for the diagnosis.

Research paper thumbnail of Coincidence of Echinococcus Alveolaris and Granulosus Infections in the Same Liver

Electronic Journal of General Medicine, 2004

Research paper thumbnail of Carotico-cavernous sinus fistula: Duplex Doppler findings

Electronic Journal of General Medicine, 2004

We report a case of an 8-year-old child with traumatic carotico-cavernous fistula. The diagnosis ... more We report a case of an 8-year-old child with traumatic carotico-cavernous fistula. The diagnosis was obtained by magnetic resonance imaging, magnetic resonance angiography and Doppler imaging and the fistula treated by percutaneous embolisation. We emphasize the duplex Doppler findings of superior ophtalmic vein in this study.

Research paper thumbnail of Radiologic and Clinical Findings in Tuberculous Meningitis

European Journal of General Medicine, 2004

We aimed to evaluate the radiologic and clinical findings of patients with tuberculous meningitis... more We aimed to evaluate the radiologic and clinical findings of patients with tuberculous meningitis encountered during a 4-year period, retrospectively. Sixteen patients with tuberculous meningitis were admitted to our hospital. The diagnosis was based on abnormal neurologic symptoms and signs, cerebrospinal fluid findings, negative bacteria culture, and abnormalities on brain-imaging studies. CT and MR examinations were performed in 16 and 9 patients, respectively. A retrospective comparison was done between CT and MR findings. All patients had fever, lethargy, and some of them had cough. Neurologic presentations included increased intracranial pressure, vomiting, seizures, paresis, nuchal rigidity, and disturbance of consciousness. Acid-fast stain of cerebrospinal fluid for tuberculous bacilli was negative for all samples. All bacterial cultures of cerebrospinal fluid yielded no growth, with the exception of one that grew Mycobacterium tuberculosis. Radiologic findings compatible with tuberculous meningitis including hydrocephalus, basilar cistern enhancement and infarction was observed more clearly on MR than CT. Early diagnosis in tuberculous meningitis may prevent neurologic damage. Imaging studies is an important part of diagnosis and MR imaging should be performed as a first choice of imaging modalities in patients with tuberculous meningitis.

Research paper thumbnail of Three-Dimensional Volume Rendering Imaging in Detection of Bone Fractures

Electronic Journal of General Medicine, 2004

We aimed to evaluate the contribution of 3D volume rendering (VR) imaging findings on bone fractu... more We aimed to evaluate the contribution of 3D volume rendering (VR) imaging findings on bone fractures. Routine CT examinations and 3D VR imaging were performed on 31 patients with bone fractures. MIP and VR images having optimal resolution in all patients were obtained using 3D reconstructions on workstation. Bone fractures and extension, bone fragment, and soft tissue changes were evaluated. Distribution of bone fractures were as follows; clavicula (n=4), radius (n=8), acetabulum (n=3), shoulder (n=4), tibia (n=6), carpal bone (n=2), sacrum (n=1) and femur (n=3). Complex fractures were seen one in scapula and 2 in pelvic region. Complex injuries, bone fragments, extension of fractures were better demonstrated with volume-rendered images. We conclude that 3D VR imaging is valuable method in detecting bone fractures and superior to other radiologic modalities.

Research paper thumbnail of Assessment of Ten-Year-Long Results of Kidney Biopsies Performed on Children in the Thrace Region of Turkey

Balkan Medical Journal, 2016

Background: Many children with kidney diseases can be diagnosed and treated without a biopsy. How... more Background: Many children with kidney diseases can be diagnosed and treated without a biopsy. However, biopsy is a valuable method for the diagnostic and prognostic evaluation of children with kidney diseases. Aims: To evaluate the clinical and pathological profiles of the kidney biopsies in our department to provide epidemiological data for clinical practice. Study Design: Retrospective cross-sectional study. Methods: Kidney biopsies and patient's charts in pediatric patients performed between May 2005

Research paper thumbnail of Erdheim-Chester Disease Presented with Bilateral Carotid Artery Occlusion: Case Report

ZET Erdheim-Chester hastal›¤› etyolojisi bilinmeyen sistemik histiyositozisin nadir bir non-Lange... more ZET Erdheim-Chester hastal›¤› etyolojisi bilinmeyen sistemik histiyositozisin nadir bir non-Langerhans formudur. Hastal›k, musküloskeletal sistem, kardiyak, pulmoner, gastrointestinal ve santral sinir sistemlerini de içeren multipl organ sistemini etkiler. Nörolojik belirtiler ise oldukça seyrektir. Bu yaz›da, bilateral kavernöz sinüs infiltrasyonu ve bilateral karotis oklüzyonu bulunan 44 yafl›nda bir Erdheim-Ches-ter hastas› sunulmufltur.

Research paper thumbnail of Segmental costovertebral anomaly presenting with horn-like appearance in the chest

Prague medical report, 2010

Several types of abnormalities of the ribs have been reported. Many of these anomalies usually re... more Several types of abnormalities of the ribs have been reported. Many of these anomalies usually result in the correct diagnosis thanks to the characteristic radiological appearances. But some of the anomalies are rare and it is important to recognize and get accustomed to differing appearances of these osseous abnormalities in order to differentiate the pathological processes and to diagnose the syndromes which may accompany rib anomalies. The localized costovertebral anomaly with horn-like appearance, which has not yet been described in literature, is presented in this paper.

Research paper thumbnail of Pleurosubcutaneous fistula presenting as lateral thoracic lump in an oncologic patient

JBR-BTR : organe de la Société royale belge de radiologie (SRBR) = orgaan van de Koninklijke Belgische Vereniging voor Radiologie (KBVR)

We describe a case of pleurosubcutaneous fistula of the left thoracic wall in an oncologic female... more We describe a case of pleurosubcutaneous fistula of the left thoracic wall in an oncologic female patient. She presented with left-sided pain and a chest wall mass bulge suspicious for breast neoplasm metastasis.

Research paper thumbnail of Twodetector Computed Tomography Map of Inferior Epigastric Vessels for Percutaneous Transabdominal Intervention Procedures

Balkan Medical Journal, 2014

The routine application of various percutaneous abdominal interventions for diagnostic and treatm... more The routine application of various percutaneous abdominal interventions for diagnostic and treatment procedures, such as paracentesis, peritoneal dialysis catheter procedures, tru-cut or fine needle biopsies, manipulation of laparoscopic instruments, insertion of sutures and drains, radiofrequency thermal ablation, abscess drainage, and endoscopic gastrostomy, has increased over the past two decades. Although these procedures can be performed safely, with or without imaging guiding, some complications may occur. Inferior epigastric artery (IEA) injuries are one of the major types of puncture site-related complications that occur in mid and lower abdominal percutaneous interventions. Therefore, it is crucial to be aware of anatomical variations and the exact course of the IEA to prevent any complications during percutaneous abdominal interventions. Several computed tomography (CT) studies have been published documenting the distance from the IEA to the midline, at different levels in randomized patients (1), and mapping the IEAs and their branches in selected cases (2-4). However, few multidetector CT (MDCT) studies have been performed on the general population revealing the abdominal course of an IEA and measuring its distance to the midline at different levels (5, 6). The purpose of this study was to map the inferior epigastric vessels using reconstructed two-detector computed tomography (TDCT) images and to measure distances from the IEA to the midline to determine a safe route for percutaneous abdominal interventions. MATERIAL AND METHODS Patient population The study population was selected from among patients who underwent contrast-enhanced abdominal MDCT examinations in our picture archiving and communication system (PACS). Approval from the Ethical Committee of the hospital was obtained (TÜTF-GOKAEK 2013/49). Medical documentation for each of the selected patients was available. MDCT examinations were performed for various reasons including follow-up of known abdominal disorders, primary or metastatic tumor investigations of different organs, vascular pathologies, and to evaluate infectious diseases. Patients with Background: It is crucial to know anatomic variations and the exact course of an inferior epigastric artery (IEA) to prevent any complications during percutaneous abdominal interventions. Aims: The aim of this study was to map the inferior epigastric vessels using reconstructed two-detector computed tomography images and measure the distance from the inferior epigastric artery (IEA) to the midline to determine a safe route for percutaneous abdominal interventions. Study Design: Retrospective comparative study. Methods: Coronal reconstructed two-detector computed tomography images of 200 patients were evaluated to measure the distances between the IEA and midline at three levels (origin, middle, and distal). Vein and artery arrangements were documented. Results: The most frequently encountered arrangement (41.5%) was a single vein and artery on both sides. Mean distances on the right and left sides were 4.01 and 4.47 cm at the umbilical level, 3.81 and 4.26 cm at the midlevel, and 5.62 and 5.51 cm at the origin level. On both sides, measurement differences between the three levels were highly significant (p<0.05). In addition, a total of 56 IEA bifurcations were depicted in all 200 patients. Thirteen of the 56 bifurcations occurred only on the right side, 11 only on the left side, and 32 on both sides. Conclusion: It is important to be attentive to the IEA's course, at different midline levels, when attempting percutaneous interventions via an abdominal approach.

Research paper thumbnail of Incidence and MDCT characteristics of asymptomatic Bochdalek's hernia in adult population

Diagnostic and Interventional Radiology, 2009

he diaphragm, which forms an anatomical wall between the thoracic and abdominal cavities, develop... more he diaphragm, which forms an anatomical wall between the thoracic and abdominal cavities, develops in the first to fourth months of gestation, along with the body wall muscles, septum transversum, pleuroperitoneal membranes, and mediastinal dorsal mesentery of the esophagus (1, 2). Congenital disorders of the diaphragm result in fusion defects of the diaphragm or maldevelopment of the gut accompanied by closure of the diaphragm. Congenital diaphragmatic hernias are categorized as Bochdalek (posterolateral), Morgagni (anterior-retrosternal), and hiatal hernias and septum transversum defect. Worldwide, congenital diaphragmatic hernias occur in one out of every 2,000-12,500 live births (3). First described in 1867 by Victor Alexander Bochdalek (4), Bochdalek hernia is the most common type of diaphragmatic hernia, accounting for 95% of cases. Most cases are symptomatic at birth, and are diagnosed in the neonatal period. In adults, most Bochdalek hernias are asymptomatic, and therefore their detection is usually incidental. The real prevalence in the population is unknown, with an estimated range between 0.17% and 12.7% (5-8). The widespread use of multi-detector row computed tomography (MDCT) for the evaluation of thoracic and abdominal disease, with its inherent rapid scan acquisition and thin collimation technique, has resulted in a significant increase in the incidental discovery of occult lesions. Thus, the aim of this study was to determine the prevalence of asymptomatic incidental Bochdalek hernias detected by MDCT, and to investigate a possible relationship between Bochdalek hernia and body habitus. Materials and methods Study population Our institutional board on medical ethics approved this research study. Informed consent was not required for this retrospective analysis. Patient confidentiality was protected. We reviewed computer records of all patients who underwent MDCT of the chest and/or abdomen at our institution between February 1, 2007 and November 30, 2007. After excluding any patients with blunt or penetrating body trauma, and abdominal, thoracic, or diaphragm operations, 1,350 consecutive patients over the age of 18 years were included in the study. MDCT examinations were performed for various indications, including follow-up of known abdominal and chest and/or abdomen disorders, primary or metastatic tumor investigations, vascular pathology, and evaluation of infectious diseases. No MDCT scan had been obtained specifically to evaluate diaphragmatic disease.

Research paper thumbnail of A case of persistant trigeminal artery variant: angiographic findings

Diagnostic and Interventional Radiology, 2008

P ersistent trigeminal artery (PTA) is the most common persistent carotid-basilar arterial anasto... more P ersistent trigeminal artery (PTA) is the most common persistent carotid-basilar arterial anastomosis with an incidence of 0.1-0.2% in large angiographic series (1-3). Moreover, direct anastomosis between precavernous portion of the internal carotid artery (ICA) and the cerebellar arteries without interposition of the basilar artery are described as PTA variants (4-7). Although the anterior inferior cerebellar artery (AICA) is the most common variant type of PTA, its course to the AICA-posterior inferior cerebellar artery (PICA) territories of the cerebellum at once is very rare, to the best of our knowledge. In this case report, we describe a case where the PTA variant supplied the ipsilateral AICA territory and most of the PICA territory. The significant catheter digital subtraction angiographic (DSA) features of this anomalous artery are also shown. Case report A 61-year-old male was admitted to the hospital for the evaluation of acute subarachnoid hemorrhage. He had no significant past or family medical history except headache for one year. Cranial computed tomography (CT) showed perimesencephalic subarachnoid hemorrhage (Fig. 1). Because of the suspicion of an aneurysm, a four-vessel cerebral catheter DSA was performed. Carotid artery injections were performed via the internal carotid arteries. DSA demonstrated the PTA variant as a vessel originating from the precavernous portion of the right internal carotid artery and running to the posterior fossa without joining the basilar artery. The anomalous artery was paired in two groups. While the anterior group vessels were blushing the AICA territory completely, the posterior group vessels, supplied most of the PICA territory (Figs. 2, 3). On the left vertebral artery angiogram, there was no right AICA filling (Fig. 4). The right vertebral angiography demonstrated a rudimentary right PICA and absence of the right AICA (Fig. 5). No vascular lesions, such as an aneurysm at the junction of the ICA and PTA variant, were encountered. This case was interpreted as idiopathic perimesencephalic hemorrhage by CT and follow-up catheter angiography was not performed. Discussion Teal et al. were the first to report a case of the cerebellar arteries originating from the ICAs but these anomalous arteries did not have interposition with the basilar artery (8). The PTA variant may irrigate the corresponding territories of the AICA or PICA, or the superior cerebellar artery (SCA). The most commonly encountered PTA variant type is the AICA (3, 4). On the other hand, PTA variant feeding both AICA and PICA territories is very rare (7). There was no additional vascular anomaly in our case. In the study of Siqueira et al. (4), 10 patients with 11 anomalous origins of the cerebel-INTERVENTIONAL RADIOLOGY

Research paper thumbnail of Virtual computed tomography cystoscopy in bladder pathologies

International braz j urol, 2006

Objective: Assessed the usefulness of virtual cystoscopy performed with multidetector computed to... more Objective: Assessed the usefulness of virtual cystoscopy performed with multidetector computed tomography (CT) in patients with different urinary bladder pathologies compared to the conventional cystoscopy. Materials and Methods: Eighteen patients with different bladder pathologies, which consisted of 11 tumors, 3 diverticula, 2 trabecular changes and 2 stones, were assessed with conventional cystoscopy and virtual CT cystoscopy. The results of virtual CT cystoscopy were compared with the findings of conventional cystoscopy. We determined the detection rate and positive predictive value of CT imaging based virtual cystoscopy in the diagnosis of urinary bladder lesions. Results: CT scanning was well tolerated by all patients, and no complications occurred. Images in 16 (88%) of the 18 virtual cystoscopic examinations were either of excellent or good quality. All tumors except one, 2 trabecular changes and 2 stones were characterized with similar findings in the both of methods. The masses ranged from 0.4 to 7.0 cm in diameter. While conventional cystoscopy could not evaluate interior part of the diverticulum, virtual CT cystoscopy could demonstrate clearly within it. There were no false-positive findings in our series. Conclusion: Virtual CT cystoscopy is a promising technique to be used in the detection of bladder lesions. It should be considered especially at the evaluation of bladder diverticula. In the future, it may be possible or even advantageous to incorporate into the imaging algorithm for evaluation of bladder lesion.

Research paper thumbnail of A Destroyer Immunologic Cause In Small Cell Lung Carcinoma: Ecthopic Cushing's Syndrome

Medical Journal of Trakya University, 2008

Research paper thumbnail of Dear Editor, The Case Report Which Published In 2009;26(2):173-177 Your Entitled As ‘' A Rare Case Of Schwannoma Arising From A Diverticulum In The First Portion Of Duodenum ‘' Has Serious Presentation Mistakes Described Below

Medical Journal of Trakya University, 2010

Research paper thumbnail of Primary serous papillary carcinoma of the retroperitoneum: magnetic resonance imaging findings with pathologic correlation

Australasian Radiology, 2007

The incidence of a primary serous papillary carcinoma of the retroperitoneum is extremely rare. W... more The incidence of a primary serous papillary carcinoma of the retroperitoneum is extremely rare. We present a case of the tumour in an adult simulating an adrenal mass with MRI findings and histopathological correlation.

Research paper thumbnail of Differential diagnosis of spinal epidural meningioma and hemangioma at MR imaging

Radiology, 2007

Page 1. Differential Diagnosis of Spinal Epidural Meningioma and Hemangioma at MR Imaging From Mu... more Page 1. Differential Diagnosis of Spinal Epidural Meningioma and Hemangioma at MR Imaging From Mustafa Kemal Demir, MD, Huseyin Ozdemir, MD, Ercument Unlu, MD, Osman Temizö z, MD, and Hakan Genchellac, MD ...

Research paper thumbnail of CT-angiographic demonstration of hepatic collateral pathways due to superior vena cava obstruction in Behçet disease

Diagnostic and interventional radiology (Ankara, Turkey), 2010

Behçet disease (BD) is a chronic multisystemic inflammatory disorder, mainly characterized by rec... more Behçet disease (BD) is a chronic multisystemic inflammatory disorder, mainly characterized by recurrent oral and genital ulcers, skin lesions, and uveitis. Large vein thrombosis in BD is unusual; when present, it is most frequently seen in the inferior or superior vena cava (SVC). The authors describe an unusual hepatic pseudolesion caused by abnormal focal enhancement through collateral pathways to the liver in two BD patients with SVC occlusion on three-dimensional multi-detector computed tomography, using volume rendering and maximum intensity projection techniques. BD should be suspected in patients presenting a focal increased hepatic enhancement area with collaterals caused by occlusion of the SVC without evidence of a hypercoagulable state or malignant mediastinal or thoracic venous inlet obstruction.

Research paper thumbnail of Hypothenar hammer syndrome: Gray-scale and color Doppler sonographic appearances

Journal of Clinical Ultrasound, 2008

We report a case of hypothenar hammer syndrome following a single severe blunt trauma in a 24-yea... more We report a case of hypothenar hammer syndrome following a single severe blunt trauma in a 24-year-old man with a painful pulsatile mass, numbness in the fourth and fifth fingers, and intolerance to cold. The gray-scale and color Doppler sonographic findings are presented with correlation with MRI.

Research paper thumbnail of Phase inversion harmonic imaging improves assessment of renal calculi: A comparison with fundamental gray-scale sonography

Journal of Clinical Ultrasound, 2007

Purpose. To compare phase inversion harmonic imaging (PIHI) with fundamental imaging (FI) in the ... more Purpose. To compare phase inversion harmonic imaging (PIHI) with fundamental imaging (FI) in the evaluation of renal calculi. Methods. Thirty adult patients with renal calculi (17 men, 13 women; mean age 44 years [range, 25-71]) underwent transabdominal sonographic examination of the urinary system. Both kidneys and renal calculi were examined with PIHI and FI. Overall renal conspicuity, calculus visibility, and clarity of posterior shadowing were assessed subjectively using a 4-point scale (0 being the worst, 3 being the best). The maximum diameter of the calculi was measured using both techniques. The effect of body mass index on qualitative scoring and quantitative measurements was evaluated. Results. PIHI improved overall renal conspicuity compared with FI (p < 0.001). The visibility of the calculi and clarity of posterior shadowing were significantly better with PIHI than with FI (p < 0.001 for both parameters). The maximum diameter of calculi was larger with PIHI than with FI (p < 0.001). The superiority of PIHI over FI regarding overall conspicuity of the kidney, visibility of the calculus, and clarity of posterior shadowing scores increased in the obese group (p < 0.001 for all 3 parameters). The mean calculus diameter difference between the 2 techniques was significantly higher in the obese group. Conclusion. The routine use of PIHI is recommended in the evaluation of renal calculi. V V

Research paper thumbnail of Hypertrophic Pyloric Stenosis: MR Findings

Electronic Journal of General Medicine, 2006

Infantile hypertrophic pyloric stenosis (IHPS) is a condition affecting young infants, in which t... more Infantile hypertrophic pyloric stenosis (IHPS) is a condition affecting young infants, in which the antropyloric portion of the stomach becomes abnormally thickened and manifests as obstruction to gastric emptying. The clinical diagnosis hinges on palpation of the thickened pylorus, or "olive." Abdominal palpation is accurate but not always successful, in such cases, radiologic examinations including US or MRI can be performed. US is the first choice of imaging modality. Unfortunately, in case of difficulty by the sonographic diagnosis of IHPS such as overlying bowel gas, MRI could be useful for the diagnosis.

Research paper thumbnail of Coincidence of Echinococcus Alveolaris and Granulosus Infections in the Same Liver

Electronic Journal of General Medicine, 2004

Research paper thumbnail of Carotico-cavernous sinus fistula: Duplex Doppler findings

Electronic Journal of General Medicine, 2004

We report a case of an 8-year-old child with traumatic carotico-cavernous fistula. The diagnosis ... more We report a case of an 8-year-old child with traumatic carotico-cavernous fistula. The diagnosis was obtained by magnetic resonance imaging, magnetic resonance angiography and Doppler imaging and the fistula treated by percutaneous embolisation. We emphasize the duplex Doppler findings of superior ophtalmic vein in this study.

Research paper thumbnail of Radiologic and Clinical Findings in Tuberculous Meningitis

European Journal of General Medicine, 2004

We aimed to evaluate the radiologic and clinical findings of patients with tuberculous meningitis... more We aimed to evaluate the radiologic and clinical findings of patients with tuberculous meningitis encountered during a 4-year period, retrospectively. Sixteen patients with tuberculous meningitis were admitted to our hospital. The diagnosis was based on abnormal neurologic symptoms and signs, cerebrospinal fluid findings, negative bacteria culture, and abnormalities on brain-imaging studies. CT and MR examinations were performed in 16 and 9 patients, respectively. A retrospective comparison was done between CT and MR findings. All patients had fever, lethargy, and some of them had cough. Neurologic presentations included increased intracranial pressure, vomiting, seizures, paresis, nuchal rigidity, and disturbance of consciousness. Acid-fast stain of cerebrospinal fluid for tuberculous bacilli was negative for all samples. All bacterial cultures of cerebrospinal fluid yielded no growth, with the exception of one that grew Mycobacterium tuberculosis. Radiologic findings compatible with tuberculous meningitis including hydrocephalus, basilar cistern enhancement and infarction was observed more clearly on MR than CT. Early diagnosis in tuberculous meningitis may prevent neurologic damage. Imaging studies is an important part of diagnosis and MR imaging should be performed as a first choice of imaging modalities in patients with tuberculous meningitis.

Research paper thumbnail of Three-Dimensional Volume Rendering Imaging in Detection of Bone Fractures

Electronic Journal of General Medicine, 2004

We aimed to evaluate the contribution of 3D volume rendering (VR) imaging findings on bone fractu... more We aimed to evaluate the contribution of 3D volume rendering (VR) imaging findings on bone fractures. Routine CT examinations and 3D VR imaging were performed on 31 patients with bone fractures. MIP and VR images having optimal resolution in all patients were obtained using 3D reconstructions on workstation. Bone fractures and extension, bone fragment, and soft tissue changes were evaluated. Distribution of bone fractures were as follows; clavicula (n=4), radius (n=8), acetabulum (n=3), shoulder (n=4), tibia (n=6), carpal bone (n=2), sacrum (n=1) and femur (n=3). Complex fractures were seen one in scapula and 2 in pelvic region. Complex injuries, bone fragments, extension of fractures were better demonstrated with volume-rendered images. We conclude that 3D VR imaging is valuable method in detecting bone fractures and superior to other radiologic modalities.

Research paper thumbnail of Assessment of Ten-Year-Long Results of Kidney Biopsies Performed on Children in the Thrace Region of Turkey

Balkan Medical Journal, 2016

Background: Many children with kidney diseases can be diagnosed and treated without a biopsy. How... more Background: Many children with kidney diseases can be diagnosed and treated without a biopsy. However, biopsy is a valuable method for the diagnostic and prognostic evaluation of children with kidney diseases. Aims: To evaluate the clinical and pathological profiles of the kidney biopsies in our department to provide epidemiological data for clinical practice. Study Design: Retrospective cross-sectional study. Methods: Kidney biopsies and patient's charts in pediatric patients performed between May 2005

Research paper thumbnail of Erdheim-Chester Disease Presented with Bilateral Carotid Artery Occlusion: Case Report

ZET Erdheim-Chester hastal›¤› etyolojisi bilinmeyen sistemik histiyositozisin nadir bir non-Lange... more ZET Erdheim-Chester hastal›¤› etyolojisi bilinmeyen sistemik histiyositozisin nadir bir non-Langerhans formudur. Hastal›k, musküloskeletal sistem, kardiyak, pulmoner, gastrointestinal ve santral sinir sistemlerini de içeren multipl organ sistemini etkiler. Nörolojik belirtiler ise oldukça seyrektir. Bu yaz›da, bilateral kavernöz sinüs infiltrasyonu ve bilateral karotis oklüzyonu bulunan 44 yafl›nda bir Erdheim-Ches-ter hastas› sunulmufltur.

Research paper thumbnail of Segmental costovertebral anomaly presenting with horn-like appearance in the chest

Prague medical report, 2010

Several types of abnormalities of the ribs have been reported. Many of these anomalies usually re... more Several types of abnormalities of the ribs have been reported. Many of these anomalies usually result in the correct diagnosis thanks to the characteristic radiological appearances. But some of the anomalies are rare and it is important to recognize and get accustomed to differing appearances of these osseous abnormalities in order to differentiate the pathological processes and to diagnose the syndromes which may accompany rib anomalies. The localized costovertebral anomaly with horn-like appearance, which has not yet been described in literature, is presented in this paper.

Research paper thumbnail of Pleurosubcutaneous fistula presenting as lateral thoracic lump in an oncologic patient

JBR-BTR : organe de la Société royale belge de radiologie (SRBR) = orgaan van de Koninklijke Belgische Vereniging voor Radiologie (KBVR)

We describe a case of pleurosubcutaneous fistula of the left thoracic wall in an oncologic female... more We describe a case of pleurosubcutaneous fistula of the left thoracic wall in an oncologic female patient. She presented with left-sided pain and a chest wall mass bulge suspicious for breast neoplasm metastasis.

Research paper thumbnail of Twodetector Computed Tomography Map of Inferior Epigastric Vessels for Percutaneous Transabdominal Intervention Procedures

Balkan Medical Journal, 2014

The routine application of various percutaneous abdominal interventions for diagnostic and treatm... more The routine application of various percutaneous abdominal interventions for diagnostic and treatment procedures, such as paracentesis, peritoneal dialysis catheter procedures, tru-cut or fine needle biopsies, manipulation of laparoscopic instruments, insertion of sutures and drains, radiofrequency thermal ablation, abscess drainage, and endoscopic gastrostomy, has increased over the past two decades. Although these procedures can be performed safely, with or without imaging guiding, some complications may occur. Inferior epigastric artery (IEA) injuries are one of the major types of puncture site-related complications that occur in mid and lower abdominal percutaneous interventions. Therefore, it is crucial to be aware of anatomical variations and the exact course of the IEA to prevent any complications during percutaneous abdominal interventions. Several computed tomography (CT) studies have been published documenting the distance from the IEA to the midline, at different levels in randomized patients (1), and mapping the IEAs and their branches in selected cases (2-4). However, few multidetector CT (MDCT) studies have been performed on the general population revealing the abdominal course of an IEA and measuring its distance to the midline at different levels (5, 6). The purpose of this study was to map the inferior epigastric vessels using reconstructed two-detector computed tomography (TDCT) images and to measure distances from the IEA to the midline to determine a safe route for percutaneous abdominal interventions. MATERIAL AND METHODS Patient population The study population was selected from among patients who underwent contrast-enhanced abdominal MDCT examinations in our picture archiving and communication system (PACS). Approval from the Ethical Committee of the hospital was obtained (TÜTF-GOKAEK 2013/49). Medical documentation for each of the selected patients was available. MDCT examinations were performed for various reasons including follow-up of known abdominal disorders, primary or metastatic tumor investigations of different organs, vascular pathologies, and to evaluate infectious diseases. Patients with Background: It is crucial to know anatomic variations and the exact course of an inferior epigastric artery (IEA) to prevent any complications during percutaneous abdominal interventions. Aims: The aim of this study was to map the inferior epigastric vessels using reconstructed two-detector computed tomography images and measure the distance from the inferior epigastric artery (IEA) to the midline to determine a safe route for percutaneous abdominal interventions. Study Design: Retrospective comparative study. Methods: Coronal reconstructed two-detector computed tomography images of 200 patients were evaluated to measure the distances between the IEA and midline at three levels (origin, middle, and distal). Vein and artery arrangements were documented. Results: The most frequently encountered arrangement (41.5%) was a single vein and artery on both sides. Mean distances on the right and left sides were 4.01 and 4.47 cm at the umbilical level, 3.81 and 4.26 cm at the midlevel, and 5.62 and 5.51 cm at the origin level. On both sides, measurement differences between the three levels were highly significant (p<0.05). In addition, a total of 56 IEA bifurcations were depicted in all 200 patients. Thirteen of the 56 bifurcations occurred only on the right side, 11 only on the left side, and 32 on both sides. Conclusion: It is important to be attentive to the IEA's course, at different midline levels, when attempting percutaneous interventions via an abdominal approach.

Research paper thumbnail of Incidence and MDCT characteristics of asymptomatic Bochdalek's hernia in adult population

Diagnostic and Interventional Radiology, 2009

he diaphragm, which forms an anatomical wall between the thoracic and abdominal cavities, develop... more he diaphragm, which forms an anatomical wall between the thoracic and abdominal cavities, develops in the first to fourth months of gestation, along with the body wall muscles, septum transversum, pleuroperitoneal membranes, and mediastinal dorsal mesentery of the esophagus (1, 2). Congenital disorders of the diaphragm result in fusion defects of the diaphragm or maldevelopment of the gut accompanied by closure of the diaphragm. Congenital diaphragmatic hernias are categorized as Bochdalek (posterolateral), Morgagni (anterior-retrosternal), and hiatal hernias and septum transversum defect. Worldwide, congenital diaphragmatic hernias occur in one out of every 2,000-12,500 live births (3). First described in 1867 by Victor Alexander Bochdalek (4), Bochdalek hernia is the most common type of diaphragmatic hernia, accounting for 95% of cases. Most cases are symptomatic at birth, and are diagnosed in the neonatal period. In adults, most Bochdalek hernias are asymptomatic, and therefore their detection is usually incidental. The real prevalence in the population is unknown, with an estimated range between 0.17% and 12.7% (5-8). The widespread use of multi-detector row computed tomography (MDCT) for the evaluation of thoracic and abdominal disease, with its inherent rapid scan acquisition and thin collimation technique, has resulted in a significant increase in the incidental discovery of occult lesions. Thus, the aim of this study was to determine the prevalence of asymptomatic incidental Bochdalek hernias detected by MDCT, and to investigate a possible relationship between Bochdalek hernia and body habitus. Materials and methods Study population Our institutional board on medical ethics approved this research study. Informed consent was not required for this retrospective analysis. Patient confidentiality was protected. We reviewed computer records of all patients who underwent MDCT of the chest and/or abdomen at our institution between February 1, 2007 and November 30, 2007. After excluding any patients with blunt or penetrating body trauma, and abdominal, thoracic, or diaphragm operations, 1,350 consecutive patients over the age of 18 years were included in the study. MDCT examinations were performed for various indications, including follow-up of known abdominal and chest and/or abdomen disorders, primary or metastatic tumor investigations, vascular pathology, and evaluation of infectious diseases. No MDCT scan had been obtained specifically to evaluate diaphragmatic disease.

Research paper thumbnail of A case of persistant trigeminal artery variant: angiographic findings

Diagnostic and Interventional Radiology, 2008

P ersistent trigeminal artery (PTA) is the most common persistent carotid-basilar arterial anasto... more P ersistent trigeminal artery (PTA) is the most common persistent carotid-basilar arterial anastomosis with an incidence of 0.1-0.2% in large angiographic series (1-3). Moreover, direct anastomosis between precavernous portion of the internal carotid artery (ICA) and the cerebellar arteries without interposition of the basilar artery are described as PTA variants (4-7). Although the anterior inferior cerebellar artery (AICA) is the most common variant type of PTA, its course to the AICA-posterior inferior cerebellar artery (PICA) territories of the cerebellum at once is very rare, to the best of our knowledge. In this case report, we describe a case where the PTA variant supplied the ipsilateral AICA territory and most of the PICA territory. The significant catheter digital subtraction angiographic (DSA) features of this anomalous artery are also shown. Case report A 61-year-old male was admitted to the hospital for the evaluation of acute subarachnoid hemorrhage. He had no significant past or family medical history except headache for one year. Cranial computed tomography (CT) showed perimesencephalic subarachnoid hemorrhage (Fig. 1). Because of the suspicion of an aneurysm, a four-vessel cerebral catheter DSA was performed. Carotid artery injections were performed via the internal carotid arteries. DSA demonstrated the PTA variant as a vessel originating from the precavernous portion of the right internal carotid artery and running to the posterior fossa without joining the basilar artery. The anomalous artery was paired in two groups. While the anterior group vessels were blushing the AICA territory completely, the posterior group vessels, supplied most of the PICA territory (Figs. 2, 3). On the left vertebral artery angiogram, there was no right AICA filling (Fig. 4). The right vertebral angiography demonstrated a rudimentary right PICA and absence of the right AICA (Fig. 5). No vascular lesions, such as an aneurysm at the junction of the ICA and PTA variant, were encountered. This case was interpreted as idiopathic perimesencephalic hemorrhage by CT and follow-up catheter angiography was not performed. Discussion Teal et al. were the first to report a case of the cerebellar arteries originating from the ICAs but these anomalous arteries did not have interposition with the basilar artery (8). The PTA variant may irrigate the corresponding territories of the AICA or PICA, or the superior cerebellar artery (SCA). The most commonly encountered PTA variant type is the AICA (3, 4). On the other hand, PTA variant feeding both AICA and PICA territories is very rare (7). There was no additional vascular anomaly in our case. In the study of Siqueira et al. (4), 10 patients with 11 anomalous origins of the cerebel-INTERVENTIONAL RADIOLOGY

Research paper thumbnail of Virtual computed tomography cystoscopy in bladder pathologies

International braz j urol, 2006

Objective: Assessed the usefulness of virtual cystoscopy performed with multidetector computed to... more Objective: Assessed the usefulness of virtual cystoscopy performed with multidetector computed tomography (CT) in patients with different urinary bladder pathologies compared to the conventional cystoscopy. Materials and Methods: Eighteen patients with different bladder pathologies, which consisted of 11 tumors, 3 diverticula, 2 trabecular changes and 2 stones, were assessed with conventional cystoscopy and virtual CT cystoscopy. The results of virtual CT cystoscopy were compared with the findings of conventional cystoscopy. We determined the detection rate and positive predictive value of CT imaging based virtual cystoscopy in the diagnosis of urinary bladder lesions. Results: CT scanning was well tolerated by all patients, and no complications occurred. Images in 16 (88%) of the 18 virtual cystoscopic examinations were either of excellent or good quality. All tumors except one, 2 trabecular changes and 2 stones were characterized with similar findings in the both of methods. The masses ranged from 0.4 to 7.0 cm in diameter. While conventional cystoscopy could not evaluate interior part of the diverticulum, virtual CT cystoscopy could demonstrate clearly within it. There were no false-positive findings in our series. Conclusion: Virtual CT cystoscopy is a promising technique to be used in the detection of bladder lesions. It should be considered especially at the evaluation of bladder diverticula. In the future, it may be possible or even advantageous to incorporate into the imaging algorithm for evaluation of bladder lesion.

Research paper thumbnail of A Destroyer Immunologic Cause In Small Cell Lung Carcinoma: Ecthopic Cushing's Syndrome

Medical Journal of Trakya University, 2008

Research paper thumbnail of Dear Editor, The Case Report Which Published In 2009;26(2):173-177 Your Entitled As ‘' A Rare Case Of Schwannoma Arising From A Diverticulum In The First Portion Of Duodenum ‘' Has Serious Presentation Mistakes Described Below

Medical Journal of Trakya University, 2010

Research paper thumbnail of Primary serous papillary carcinoma of the retroperitoneum: magnetic resonance imaging findings with pathologic correlation

Australasian Radiology, 2007

The incidence of a primary serous papillary carcinoma of the retroperitoneum is extremely rare. W... more The incidence of a primary serous papillary carcinoma of the retroperitoneum is extremely rare. We present a case of the tumour in an adult simulating an adrenal mass with MRI findings and histopathological correlation.

Research paper thumbnail of Differential diagnosis of spinal epidural meningioma and hemangioma at MR imaging

Radiology, 2007

Page 1. Differential Diagnosis of Spinal Epidural Meningioma and Hemangioma at MR Imaging From Mu... more Page 1. Differential Diagnosis of Spinal Epidural Meningioma and Hemangioma at MR Imaging From Mustafa Kemal Demir, MD, Huseyin Ozdemir, MD, Ercument Unlu, MD, Osman Temizö z, MD, and Hakan Genchellac, MD ...

Research paper thumbnail of CT-angiographic demonstration of hepatic collateral pathways due to superior vena cava obstruction in Behçet disease

Diagnostic and interventional radiology (Ankara, Turkey), 2010

Behçet disease (BD) is a chronic multisystemic inflammatory disorder, mainly characterized by rec... more Behçet disease (BD) is a chronic multisystemic inflammatory disorder, mainly characterized by recurrent oral and genital ulcers, skin lesions, and uveitis. Large vein thrombosis in BD is unusual; when present, it is most frequently seen in the inferior or superior vena cava (SVC). The authors describe an unusual hepatic pseudolesion caused by abnormal focal enhancement through collateral pathways to the liver in two BD patients with SVC occlusion on three-dimensional multi-detector computed tomography, using volume rendering and maximum intensity projection techniques. BD should be suspected in patients presenting a focal increased hepatic enhancement area with collaterals caused by occlusion of the SVC without evidence of a hypercoagulable state or malignant mediastinal or thoracic venous inlet obstruction.

Research paper thumbnail of Hypothenar hammer syndrome: Gray-scale and color Doppler sonographic appearances

Journal of Clinical Ultrasound, 2008

We report a case of hypothenar hammer syndrome following a single severe blunt trauma in a 24-yea... more We report a case of hypothenar hammer syndrome following a single severe blunt trauma in a 24-year-old man with a painful pulsatile mass, numbness in the fourth and fifth fingers, and intolerance to cold. The gray-scale and color Doppler sonographic findings are presented with correlation with MRI.

Research paper thumbnail of Phase inversion harmonic imaging improves assessment of renal calculi: A comparison with fundamental gray-scale sonography

Journal of Clinical Ultrasound, 2007

Purpose. To compare phase inversion harmonic imaging (PIHI) with fundamental imaging (FI) in the ... more Purpose. To compare phase inversion harmonic imaging (PIHI) with fundamental imaging (FI) in the evaluation of renal calculi. Methods. Thirty adult patients with renal calculi (17 men, 13 women; mean age 44 years [range, 25-71]) underwent transabdominal sonographic examination of the urinary system. Both kidneys and renal calculi were examined with PIHI and FI. Overall renal conspicuity, calculus visibility, and clarity of posterior shadowing were assessed subjectively using a 4-point scale (0 being the worst, 3 being the best). The maximum diameter of the calculi was measured using both techniques. The effect of body mass index on qualitative scoring and quantitative measurements was evaluated. Results. PIHI improved overall renal conspicuity compared with FI (p < 0.001). The visibility of the calculi and clarity of posterior shadowing were significantly better with PIHI than with FI (p < 0.001 for both parameters). The maximum diameter of calculi was larger with PIHI than with FI (p < 0.001). The superiority of PIHI over FI regarding overall conspicuity of the kidney, visibility of the calculus, and clarity of posterior shadowing scores increased in the obese group (p < 0.001 for all 3 parameters). The mean calculus diameter difference between the 2 techniques was significantly higher in the obese group. Conclusion. The routine use of PIHI is recommended in the evaluation of renal calculi. V V