hasan nazaroğlu - Academia.edu (original) (raw)
Papers by hasan nazaroğlu
Respiration, 2000
Background and Objectives: Malignant pleural mesothelioma (MPM) is reported to be common in the s... more Background and Objectives: Malignant pleural mesothelioma (MPM) is reported to be common in the southeast of Turkey, as a result of environmental asbestos exposure. The aim of this study was to evaluate the computed tomography (CT) features of MPM in patients with a history of asbestos exposure. Methods: The CT scans of 117 patients who had a diagnosis of MPM were retrospectively evaluated. Additionally, CT findings of histologic subtypes were compared. Results: The most common CT findings included pleural effusion (n = 104, 89%), pleural thickening (n = 96, 82%), mediastinal pleural involvement (n = 77, 66%) and interlobar fissural involvement (n = 62, 53%). Histologic subtype analysis was performed in 89 patients; of these, epithelial, sarcomatous and mixed types were identified in 46, 23 and 20 patients, respectively. An analysis of CT findings demonstrated that the involvement of mediastinal pleural (91%), interlobar fissure (87%) and lung parenchyma (48%) was significantly more frequent in sarcomatous type, as compared to epithelial (61% and p < 0.01; 35 and 4%, p < 0.0001, respectively) and mixed types (65% and p < 0.05; 10% and p < 0.0001; 10% and p < 0.01, respectively). Furthermore, there was a significant correlation between pericardial involvement and chest wall involvement (r = 0.42, p < 0.05) in sarcomatous type. Similarly, lymphadenopathy and parenchymal involvement (r = 0.23, p < 0.02), pericardial and chest wall involvement (r = 0.25, p < 0.01), chest wall and interlobar fissural involvement (r = 0.25, p < 0.01) were significantly correlated, when CT findings of all histologic subtypes were combined. Conclusions: These results suggest that although CT findings of MPM vary, they may provide valuable clues to the diagnosis, at least in patients with a history of asbestos exposure. In addition, the presence of extensive lesions may suggest MPM of sarcomatous subtype.
American Journal of Case Reports, Jan 2, 2005
American Journal of Roentgenology, May 1, 1999
PubMed, Jul 1, 2010
Aim: Renal ultrasound (US) is the most appropriate method for imaging renal failure; however, con... more Aim: Renal ultrasound (US) is the most appropriate method for imaging renal failure; however, considerable overlap in renal size and renal echogenicity exists between normally and abnormally functioning kidneys. We compared the sonographic features of kidneys in patients with renal failure to investigate the potential role of renal US to distinguish acute from chronic renal failure and assessed the diagnostic role of body surface area-corrected renal length compared to measured renal length. Materials and methods: We included 127 consecutive patients with serum creatinine levels higher than 3 mg/dl and 33 healthy volunteers. The subjects with acute renal failure (ARF) and chronic renal failure (CRF) were compared for renal length, parenchymal thickness, parenchymal echogenicity, distinctness of the corticomedullary junction, and the presence of stones and cysts. Results: No significant differences in age, serum albumin, creatinine, weight, height, or gender distribution were found between patients with ARF and those with CRF, except in serum hemoglobin. The right and left kidney parenchymal thickness and renal length were significantly greater in ARF patients than in those with CRF (p < 0.0001). The mean parenchymal thickness and renal length were similar in ARF patients and the control group. Grade I hyperechogenicity was the most common finding during sonography. Conclusions: Renal length, parenchymal thickness, and echogenicity differed significantly between patients with acute and chronic renal failure. A renal US examination is still the most appropriate method for imaging renal failure and should be combined with other tests to distinguish acute from chronic renal failure.
Kulak burun boğaz ihtisas dergisi, 2010
Clinical Radiology, Dec 1, 2005
International Journal of Case Reports and Images, 2014
International Journal of Case Reports and Images (IJCRI) is an international, peer reviewed, mont... more International Journal of Case Reports and Images (IJCRI) is an international, peer reviewed, monthly, open access, online journal, publishing high-quality, articles in all areas of basic medical sciences and clinical specialties. Aim of IJCRI is to encourage the publication of new information by providing a platform for reporting of unique, unusual and rare cases which enhance understanding of disease process, its diagnosis, management and clinico-pathologic correlations. IJCRI publishes Review Articles, Case Series, Case Reports, Case in Images, Clinical Images and Letters to Editor.
International Journal of Case Reports and Images, 2014
International Journal of Case Reports and Images (IJCRI) is an international, peer reviewed, mont... more International Journal of Case Reports and Images (IJCRI) is an international, peer reviewed, monthly, open access, online journal, publishing high-quality, articles in all areas of basic medical sciences and clinical specialties. Aim of IJCRI is to encourage the publication of new information by providing a platform for reporting of unique, unusual and rare cases which enhance understanding of disease process, its diagnosis, management and clinico-pathologic correlations. IJCRI publishes Review Articles, Case Series, Case Reports, Case in Images, Clinical Images and Letters to Editor.
Current Medical Imaging Reviews, 2014
Advances in Computed Tomography, 2013
dicle.edu.tr
situs inversus, bronşektazi ve sinüzit triadından oluşan nadir bir kongenital malformasyondur. Ge... more situs inversus, bronşektazi ve sinüzit triadından oluşan nadir bir kongenital malformasyondur. Genetik bozukluk silialardadır. Onüç yaşında polispleninin eşlik ettiği Kartagener sendromu tanısı koyduğumuz olgumuzu görüntüleme bulgularıyla sunduk. Sık solunum yolu enfeksiyonu geçiren olgularda, sebebin Kartagener sendromuna da bağlı olabileceği akılda tutulmalıdır.
Southern Medical Journal, 2002
Respiration, 2001
Pulmonary alveolar microlithiasis (PAM) is a lung disease characterized by deposits of calcium wi... more Pulmonary alveolar microlithiasis (PAM) is a lung disease characterized by deposits of calcium within the alveoli. Our aim was to emphasize the familial character and the clinical features of the disease, and to draw attention to the increasing number of Turkish patients reported in the world. We detected 6 cases of PAM. Three cases had been diagnosed 4 years earlier, and 3 new cases were detected during the screening of the family members. All patients were male and the mean age was 11.5 ranging between 5 and 29 years. Five of the patients were cousins and the other one was their uncle. Radiographic studies showed a sand-like appearance in all patients. One case showed small subpleural bullae and bronchiectatic changes in both lower lobes in recent high-resolution CT scans, while his CT performed 4 years ago showed only sand-like appearance. The cases were diagnosed with the demonstration of microliths by bronchoalveolar lavage in 5 patients and transbronchial biopsy in 1. Recently...
Journal of Clinical Ultrasound, 2005
PurposeOur aim was to evaluate with sonography the volume changes of the gallbladder after intrav... more PurposeOur aim was to evaluate with sonography the volume changes of the gallbladder after intravenous administration of nonionic, iodinated contrast agents with or without ingestion of contrast agent or water.MethodsA total of 191 patients received intravenous injection of 50 ml of nonionic contrast agent (Group A), intravenous injection of 100 ml of contrast medium (Group B), intravenous injection of 100 ml of contrast medium together with ingestion of 1000 ml of a dilute solution of contrast medium (Group C), or 1000 ml of water taken orally (Group D). The gallbladder volume was measured by ultrasonography in the fasting state in all groups, 15 minutes after intravenous injection of contrast medium in Groups A, B, and C and 30 minutes after water ingestion in Group D.ResultsIn all groups, the volume of the gallbladder was statistically lower after the procedure than before. There was no significant difference among the groups in terms of this gallbladder volume change.Conclusions...
Current Eye Research, 2006
To investigate blood flow velocity changes and resistivity index values of orbital vessels in Beh... more To investigate blood flow velocity changes and resistivity index values of orbital vessels in Behçet disease with or without ocular involvement, in uveitis patients with different etiologies, and in healthy volunteers. Subjects were divided into four groups: those with ocular involvement in Behçet disease (group I), those without ocular involvement in Behçet disease (group II), uveitis patients with different etiologies (group III), and a control group (group IV). Twenty-seven eyes in group I, 14 eyes in group II, 25 eyes in group III, and 27 eyes in group IV were investigated. The blood flow in the central retinal artery (CRA), ophthalmic artery (OA), nasal posterior ciliary artery (NPCA), and the temporal posterior ciliary artery (TPCA) was measured using color Doppler ultrasonography (CDU) to determine the peak systolic velocity (PSV), end diastolic velocity (EDV), and resistivity index (RI). The PSV and EDV value of CRA in groups I, II, and III were found to be significantly lower than those in the control group (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05 for each). The PSV and EDV values of TPCA and NPCA in groups I, II, and III were significantly lower than those in the control group (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05 for each). Resistivity indexes of all arteries were higher in groups I, II, and III than the control group. The PSV and EDV in CRA, TPCA, and NPCA in Behçet disease patients with ocular involvement were significantly lower than all other groups (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05). There are significant reductions in the blood flow values of the orbital arteries in patients with Behçet disease and uveitis patients with different etiologies when compared with healthy volunteers. The decrease in blood flow values in Behçet disease is more evident in patients with ocular involvement than the patients without ocular involvement. This might be the result of occlusive vasculitis, which is frequently seen in the retinal vessels of patients with Behçet disease.
International Journal of Occupational Medicine and Environmental Health, 2016
Dicle Universitesi Tip Fakultesindeki Dogumlarda Konjenital Anomali Prevalansi: 6 Yillik Seri
Respiration, 2000
Background and Objectives: Malignant pleural mesothelioma (MPM) is reported to be common in the s... more Background and Objectives: Malignant pleural mesothelioma (MPM) is reported to be common in the southeast of Turkey, as a result of environmental asbestos exposure. The aim of this study was to evaluate the computed tomography (CT) features of MPM in patients with a history of asbestos exposure. Methods: The CT scans of 117 patients who had a diagnosis of MPM were retrospectively evaluated. Additionally, CT findings of histologic subtypes were compared. Results: The most common CT findings included pleural effusion (n = 104, 89%), pleural thickening (n = 96, 82%), mediastinal pleural involvement (n = 77, 66%) and interlobar fissural involvement (n = 62, 53%). Histologic subtype analysis was performed in 89 patients; of these, epithelial, sarcomatous and mixed types were identified in 46, 23 and 20 patients, respectively. An analysis of CT findings demonstrated that the involvement of mediastinal pleural (91%), interlobar fissure (87%) and lung parenchyma (48%) was significantly more frequent in sarcomatous type, as compared to epithelial (61% and p < 0.01; 35 and 4%, p < 0.0001, respectively) and mixed types (65% and p < 0.05; 10% and p < 0.0001; 10% and p < 0.01, respectively). Furthermore, there was a significant correlation between pericardial involvement and chest wall involvement (r = 0.42, p < 0.05) in sarcomatous type. Similarly, lymphadenopathy and parenchymal involvement (r = 0.23, p < 0.02), pericardial and chest wall involvement (r = 0.25, p < 0.01), chest wall and interlobar fissural involvement (r = 0.25, p < 0.01) were significantly correlated, when CT findings of all histologic subtypes were combined. Conclusions: These results suggest that although CT findings of MPM vary, they may provide valuable clues to the diagnosis, at least in patients with a history of asbestos exposure. In addition, the presence of extensive lesions may suggest MPM of sarcomatous subtype.
American Journal of Case Reports, Jan 2, 2005
American Journal of Roentgenology, May 1, 1999
PubMed, Jul 1, 2010
Aim: Renal ultrasound (US) is the most appropriate method for imaging renal failure; however, con... more Aim: Renal ultrasound (US) is the most appropriate method for imaging renal failure; however, considerable overlap in renal size and renal echogenicity exists between normally and abnormally functioning kidneys. We compared the sonographic features of kidneys in patients with renal failure to investigate the potential role of renal US to distinguish acute from chronic renal failure and assessed the diagnostic role of body surface area-corrected renal length compared to measured renal length. Materials and methods: We included 127 consecutive patients with serum creatinine levels higher than 3 mg/dl and 33 healthy volunteers. The subjects with acute renal failure (ARF) and chronic renal failure (CRF) were compared for renal length, parenchymal thickness, parenchymal echogenicity, distinctness of the corticomedullary junction, and the presence of stones and cysts. Results: No significant differences in age, serum albumin, creatinine, weight, height, or gender distribution were found between patients with ARF and those with CRF, except in serum hemoglobin. The right and left kidney parenchymal thickness and renal length were significantly greater in ARF patients than in those with CRF (p < 0.0001). The mean parenchymal thickness and renal length were similar in ARF patients and the control group. Grade I hyperechogenicity was the most common finding during sonography. Conclusions: Renal length, parenchymal thickness, and echogenicity differed significantly between patients with acute and chronic renal failure. A renal US examination is still the most appropriate method for imaging renal failure and should be combined with other tests to distinguish acute from chronic renal failure.
Kulak burun boğaz ihtisas dergisi, 2010
Clinical Radiology, Dec 1, 2005
International Journal of Case Reports and Images, 2014
International Journal of Case Reports and Images (IJCRI) is an international, peer reviewed, mont... more International Journal of Case Reports and Images (IJCRI) is an international, peer reviewed, monthly, open access, online journal, publishing high-quality, articles in all areas of basic medical sciences and clinical specialties. Aim of IJCRI is to encourage the publication of new information by providing a platform for reporting of unique, unusual and rare cases which enhance understanding of disease process, its diagnosis, management and clinico-pathologic correlations. IJCRI publishes Review Articles, Case Series, Case Reports, Case in Images, Clinical Images and Letters to Editor.
International Journal of Case Reports and Images, 2014
International Journal of Case Reports and Images (IJCRI) is an international, peer reviewed, mont... more International Journal of Case Reports and Images (IJCRI) is an international, peer reviewed, monthly, open access, online journal, publishing high-quality, articles in all areas of basic medical sciences and clinical specialties. Aim of IJCRI is to encourage the publication of new information by providing a platform for reporting of unique, unusual and rare cases which enhance understanding of disease process, its diagnosis, management and clinico-pathologic correlations. IJCRI publishes Review Articles, Case Series, Case Reports, Case in Images, Clinical Images and Letters to Editor.
Current Medical Imaging Reviews, 2014
Advances in Computed Tomography, 2013
dicle.edu.tr
situs inversus, bronşektazi ve sinüzit triadından oluşan nadir bir kongenital malformasyondur. Ge... more situs inversus, bronşektazi ve sinüzit triadından oluşan nadir bir kongenital malformasyondur. Genetik bozukluk silialardadır. Onüç yaşında polispleninin eşlik ettiği Kartagener sendromu tanısı koyduğumuz olgumuzu görüntüleme bulgularıyla sunduk. Sık solunum yolu enfeksiyonu geçiren olgularda, sebebin Kartagener sendromuna da bağlı olabileceği akılda tutulmalıdır.
Southern Medical Journal, 2002
Respiration, 2001
Pulmonary alveolar microlithiasis (PAM) is a lung disease characterized by deposits of calcium wi... more Pulmonary alveolar microlithiasis (PAM) is a lung disease characterized by deposits of calcium within the alveoli. Our aim was to emphasize the familial character and the clinical features of the disease, and to draw attention to the increasing number of Turkish patients reported in the world. We detected 6 cases of PAM. Three cases had been diagnosed 4 years earlier, and 3 new cases were detected during the screening of the family members. All patients were male and the mean age was 11.5 ranging between 5 and 29 years. Five of the patients were cousins and the other one was their uncle. Radiographic studies showed a sand-like appearance in all patients. One case showed small subpleural bullae and bronchiectatic changes in both lower lobes in recent high-resolution CT scans, while his CT performed 4 years ago showed only sand-like appearance. The cases were diagnosed with the demonstration of microliths by bronchoalveolar lavage in 5 patients and transbronchial biopsy in 1. Recently...
Journal of Clinical Ultrasound, 2005
PurposeOur aim was to evaluate with sonography the volume changes of the gallbladder after intrav... more PurposeOur aim was to evaluate with sonography the volume changes of the gallbladder after intravenous administration of nonionic, iodinated contrast agents with or without ingestion of contrast agent or water.MethodsA total of 191 patients received intravenous injection of 50 ml of nonionic contrast agent (Group A), intravenous injection of 100 ml of contrast medium (Group B), intravenous injection of 100 ml of contrast medium together with ingestion of 1000 ml of a dilute solution of contrast medium (Group C), or 1000 ml of water taken orally (Group D). The gallbladder volume was measured by ultrasonography in the fasting state in all groups, 15 minutes after intravenous injection of contrast medium in Groups A, B, and C and 30 minutes after water ingestion in Group D.ResultsIn all groups, the volume of the gallbladder was statistically lower after the procedure than before. There was no significant difference among the groups in terms of this gallbladder volume change.Conclusions...
Current Eye Research, 2006
To investigate blood flow velocity changes and resistivity index values of orbital vessels in Beh... more To investigate blood flow velocity changes and resistivity index values of orbital vessels in Behçet disease with or without ocular involvement, in uveitis patients with different etiologies, and in healthy volunteers. Subjects were divided into four groups: those with ocular involvement in Behçet disease (group I), those without ocular involvement in Behçet disease (group II), uveitis patients with different etiologies (group III), and a control group (group IV). Twenty-seven eyes in group I, 14 eyes in group II, 25 eyes in group III, and 27 eyes in group IV were investigated. The blood flow in the central retinal artery (CRA), ophthalmic artery (OA), nasal posterior ciliary artery (NPCA), and the temporal posterior ciliary artery (TPCA) was measured using color Doppler ultrasonography (CDU) to determine the peak systolic velocity (PSV), end diastolic velocity (EDV), and resistivity index (RI). The PSV and EDV value of CRA in groups I, II, and III were found to be significantly lower than those in the control group (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05 for each). The PSV and EDV values of TPCA and NPCA in groups I, II, and III were significantly lower than those in the control group (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05 for each). Resistivity indexes of all arteries were higher in groups I, II, and III than the control group. The PSV and EDV in CRA, TPCA, and NPCA in Behçet disease patients with ocular involvement were significantly lower than all other groups (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05). There are significant reductions in the blood flow values of the orbital arteries in patients with Behçet disease and uveitis patients with different etiologies when compared with healthy volunteers. The decrease in blood flow values in Behçet disease is more evident in patients with ocular involvement than the patients without ocular involvement. This might be the result of occlusive vasculitis, which is frequently seen in the retinal vessels of patients with Behçet disease.
International Journal of Occupational Medicine and Environmental Health, 2016
Dicle Universitesi Tip Fakultesindeki Dogumlarda Konjenital Anomali Prevalansi: 6 Yillik Seri