Erdinc Aydin | Baskent University (original) (raw)
Papers by Erdinc Aydin
Clinical Anatomy, 2010
Few authors have studied differences in craniofacial morphology of adults with chronic otitis med... more Few authors have studied differences in craniofacial morphology of adults with chronic otitis media (COM). We sought to compare the craniofacial measurements of patients with COM with otherwise healthy adults. The study group included 120 adult patients. The control group had 30 men and 30 women without evidence of otitis media; a COM group consisted of 30 men and 30 women with COM. Craniofacial measurements were assessed retrospectively using a two-dimensional reformatted CT method. Multiple linear (bony and cartilaginous auditory tube length, size of the mastoid, height of the jugular bulbus, intercochlear distance, bitemporal distance, distance between pharyngeal orifices, and some cephalometric cranial base distances), angular (auditory tube angle, cranial base angle), and area (axial and sagittal nasopharynx size) measurements were performed. In addition, petrosquamosal (Körner's) septum prevalence and size were evaluated. No statistically significant differences were found regarding craniofacial variables except mastoid size (mastoid depth and length). None of the craniofacial parameters showed significant differences between adults with COM and adults without evidence of otitis media, when age, sex, and race were considered. No statistically significant differences were found when mastoid size was compared with unilateral and bilateral COM. No statistically significant difference was found between mastoid size of the intact side and involved side of the unilateral patients with COM. Patients with unilateral and bilateral COM may be in the same group, genetically or environmentally, as far as mastoid size is concerned. Small mastoid size correlates with COM, but development of clinical disease should be under the control of different factors.
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 2010
Metaplastic Warthin tumor is a rarely seen subtype of Warthin tumor. It can resemble squamous car... more Metaplastic Warthin tumor is a rarely seen subtype of Warthin tumor. It can resemble squamous carcinomas histopathologically, because it contains atypical squamous cells on the necrotic surface. Making a diagnosis can become easier by knowing this entity of Warthin tumor well and by correlating the radiologic findings with pathology. In this case presentation, imaging features of a metaplastic Warthin tumor are presented together with its histopathologic findings. When a solid mass with peripheral enhancing cystic-necrotic component and well defined contour and capsule that shows early enhancement and washout is identified with imaging methods in parotid gland, metaplastic Warthin tumor should be indicated in the differential diagnosis before the histopathologic evaluation.
Kulak burun boğaz ihtisas dergisi : KBB = Journal of ear, nose, and throat, 2007
Osteomas are the most common benign tumors of the paranasal sinuses. They may be seen at all ages... more Osteomas are the most common benign tumors of the paranasal sinuses. They may be seen at all ages and show a male preponderance. A 54-year-old male patient presented with a complaint of nasal obstruction. Computed tomography of the paranasal sinuses showed three osteomas, nearly 5 mm in size, in both ethmoid sinuses and the right frontal sinus. Inquiry into the Gardner's syndrome was negative. No surgical treatment was performed at the patient's discretion. To our knowledge, the presence of multiple osteomas in the frontal and ethmoid sinuses has not been reported in the English literature.
Acta Oto-Laryngologica, 2006
Dysphagia is a common presenting complaint in otolaryngology practice, and there are many causes.... more Dysphagia is a common presenting complaint in otolaryngology practice, and there are many causes. Forestier syndrome is a rare cause of dysphagia. It is also known as diffuse idiopathic skeletal hyperostosis (DISH) syndrome or vertebral ankylosing hyperostosis. Forestier syndrome consists of anterolateral perivertebral ligament calcification. It was first described by Forestier and Rotes-Querol in 1950; diagnosis is primarily radiological and the etiology is unknown. In addition to dysphagia Forestier syndrome has been reported to cause laryngeal stridor, dyspnea, snoring and hoarseness. Other important symptoms associated with Forestier syndrome are stiffness and pain in the back, pain related to tendinitis, myelopathy related to core compression associated with the ossification of the posterior longitudinal ligament, and pain related to vertebral complications such as fracture or subluxation. We report six cases of Forestier syndrome as an etiologic factor in dysphagia and present clinical and radiological findings.
American Journal of Rhinology & Allergy, 2008
Ophthalmic surgery, lasers & imaging : the official journal of the International Society for Imaging in the Eye
A 48-year-old patient with a scleral-fixated posterior chamber intraocular lens had dislocation o... more A 48-year-old patient with a scleral-fixated posterior chamber intraocular lens had dislocation of the intraocular lens into the anterior chamber and associated pseudophakic bullous keratopathy. The patient underwent intraocular lens extraction and partial penetrating keratoplasty. Because an anterior chamber intraocular lens is easier to implant and has fewer complications, surgeons may want to consider this as the first choice for treatment. If the scleral-fixated posterior chamber intraocular lens is used, it must be implanted properly and meticulously to avoid complications.
The purpose of this study was to investigate iron (Fe), zinc (Zn), and copper (Cu) levels of aque... more The purpose of this study was to investigate iron (Fe), zinc (Zn), and copper (Cu) levels of aqueous humor, lens, and serum in nondiabetics and diabetics and to determine the effects of diabetes on Fe, Zn, and Cu contents in the lens. Fe, Zn, and Cu contents of aqueous humor, lens, and serum samples of 19 patients (9 nondiabetic patients with a mean age of 62.3 +/- 5.4 yr, and 10 diabetic patients with a mean age of 59.5 +/- 5.9 yr) were analyzed by atomic absorption spectrometry using a prospective study design. The lens levels of Cu in diabetic patients were significantly higher compared with nondiabetic patients (p = 0.02); however; there was no difference in the other elements (Zn, Fe; p = 0.28, p = 0.74, respectively). The levels of Fe, Zn, and Cu in the aqueous humor and serum of diabetic patients were not found to be statistically significant when compared to nondiabetics (p = 0.46, p = 0.11, p = 0.18, and p = 0.22, p = 0.43, p = 0.72, respectively). These results demonstrate that increased Cu content of the lens presumably has a greater association with the development of lens opacification in diabetics than Zn and Fe content.
Journal of medical case reports, 2008
Factitious cheilitis is a chronic condition characterized by crusting and ulceration that is prob... more Factitious cheilitis is a chronic condition characterized by crusting and ulceration that is probably secondary to chewing and sucking of the lips. Atopy, actinic damage, exfoliative cheilitis, cheilitis granulomatosa or glandularis, contact dermatitis, photosensitivity reactions and neoplasia should be considered in the differential diagnosis of crusted and ulcerated lesions of the lip. We present a 56 year-old female with an ulcerated and crusted lesion on her lower lip. The biopsy showed granulation tissue and associated inflammation but no malignancy. Based on the tissue examination and through clinical evaluation the diagnosis of factitious cheilitis was rendered. Thorough clinical history, utilization of basic laboratory tests and histopathologic evaluation are required to exclude other diseases and a thoruough psychiatric evaluation and treatment is vital for successful management of these patients.
Auris Nasus Larynx, 2009
ObjectiveThe goals of this study were to evaluate the long-term results of endoscopic endonasal d... more ObjectiveThe goals of this study were to evaluate the long-term results of endoscopic endonasal dacryocystorhinostomy (DCR) with or without a posterior mucosal flap and to compare the surgical success rates of that procedure in patients with a nasolacrimal duct obstruction.
Experimental and Clinical Transplantation, 2013
Objectives: Hearing impairment is a frequent problem that can easily influence the quality of lif... more Objectives: Hearing impairment is a frequent problem that can easily influence the quality of life for the individual. It may affect one's social and academic life. Knowledge regarding hearing impairment after renal transplant is sparse. It has been suggested that renal transplant improves hearing function. Potential ototoxic side effects may be related to immunosuppression with calcineurin inhibitors. In pediatric renal transplanted patients, we do not have enough information about this subject. We report 2 cases that developed sudden hearing loss after a renal transplant that was associated with high serum levels of tacrolimus. Case Reports: Two renal transplanted children (a 15-year-old boy and a 17-year-old girl), in the fourth year of their follow-up after transplant, developed symptomatic bilateral sudden hearing loss. There was a marked hearing impairment for the higher frequencies between 4000 and 8000 Hz in pure-tone audiometry evaluation. Also, a decrease of speech understanding was found, but the patients were not conscious of this problem. Hearing loss in these patients was not associated with any known risk factors such as chronic renal disease, ototoxic drugs, or acoustic trauma. Sudden hearing loss occurred under high serum levels of tacrolimus, and after dosage correction of tacrolimus pure-tone audiometry ruled out hearing loss progression for each patient. Conclusions: Awareness of this potential complication of tacrolimus may be helpful for early recognition and treatment.
Journal of Computer Assisted Tomography, 2007
Our aim was to research the enhancement features of parotid gland masses in detail and characteri... more Our aim was to research the enhancement features of parotid gland masses in detail and characterize if the masses were Warthin tumors, adenomas, or malignant tumors. The prospective study included 25 parotid tumors in 21 patients. Neck computed tomography (CT) was performed using a multislice CT unit. A full-neck CT examination was done at 30 seconds after completion of contrast injection, and then tumor-level images were obtained at 90 seconds and at 5 and 25 minutes. Computed tomography number (lesion density in Hounsfield units) was determined at each phase, and differences within and among tumor groups were statistically analyzed. Diagnoses were confirmed by histopathology. There were 11 Warthin tumors, 8 pleomorphic adenomas, 5 malignant tumors, and 1 basal cell adenoma. Ten Warthin tumors showed rapid contrast enhancement at 30 seconds and rapid reduction of enhancement from the first to the fourth phase. The basal cell adenoma showed also a peak enhancement at 30 seconds. Seven pleomorphic adenomas showed increased enhancement through the first 3 phases. Four malignant tumors showed peak enhancement at 90 seconds. Statistically significant differences within and among tumor groups were determined. The data suggest that peak tumor enhancement at 30 and 90 seconds, respectively, might identify Warthin and malignant tumors. Increased enhancement through all phases might be an indicator for diagnosing pleomorphic adenomas.
Ophthalmic Research, 2007
Background: To report two cases with previously undescribed fundus lesions as early ocular signs ... more Background: To report two cases with previously undescribed fundus lesions as early ocular signs of pseudoxanthoma elasticum (PXE). Methods: Clinical work-up including color photography and fundus fluorescein angiography (FFA). Results: A 10-year-old girl and an 8-year-old boy (siblings) presented with dermatological exacerbations of PXE. On ophthalmological examination, both patients showed multiple, round, and yellowish white lesions located from the perifoveal
Acta Oto-laryngologica, 2006
Dysphagia is a common presenting complaint in otolaryngology practice, and there are many causes.... more Dysphagia is a common presenting complaint in otolaryngology practice, and there are many causes. Forestier syndrome is a rare cause of dysphagia. It is also known as diffuse idiopathic skeletal hyperostosis (DISH) syndrome or vertebral ankylosing hyperostosis. Forestier syndrome consists of anterolateral perivertebral ligament calcification. It was first described by Forestier and Rotes-Querol in 1950; diagnosis is primarily radiological and the etiology is unknown. In addition to dysphagia Forestier syndrome has been reported to cause laryngeal stridor, dyspnea, snoring and hoarseness. Other important symptoms associated with Forestier syndrome are stiffness and pain in the back, pain related to tendinitis, myelopathy related to core compression associated with the ossification of the posterior longitudinal ligament, and pain related to vertebral complications such as fracture or subluxation. We report six cases of Forestier syndrome as an etiologic factor in dysphagia and present clinical and radiological findings.
Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology - ORAL SURG ORAL MED ORAL PATHO, 2010
Metaplastic Warthin tumor is a rarely seen subtype of Warthin tumor. It can resemble squamous car... more Metaplastic Warthin tumor is a rarely seen subtype of Warthin tumor. It can resemble squamous carcinomas histopathologically, because it contains atypical squamous cells on the necrotic surface. Making a diagnosis can become easier by knowing this entity of Warthin tumor well and by correlating the radiologic findings with pathology. In this case presentation, imaging features of a metaplastic Warthin tumor are presented together with its histopathologic findings. When a solid mass with peripheral enhancing cystic-necrotic component and well defined contour and capsule that shows early enhancement and washout is identified with imaging methods in parotid gland, metaplastic Warthin tumor should be indicated in the differential diagnosis before the histopathologic evaluation.
Otolaryngology - Head and Neck Surgery, 2006
Journal of Medical Case Reports, 2008
Introduction: Benign paroxysmal positional vertigo (BPPV) is the most common type of vertigo. It ... more Introduction: Benign paroxysmal positional vertigo (BPPV) is the most common type of vertigo. It is frequently seen in elderly patients, and the course of the attack may easily mimic cerebrovascular disease. A BPPV attack after a radiologic examination has not been reported previously. We report the cases of two patients who had BPPV attacks after radiologic imaging.
BMC Ear, Nose and Throat Disorders, 2007
Background: Reusable nasal-spray devices are frequently used in otolaryngologic examinations, and... more Background: Reusable nasal-spray devices are frequently used in otolaryngologic examinations, and there is an increasing concern about the risk of cross-contamination from these devices. The aim of our study was to determine, by means of microbiologic analysis, the safety of a positivedisplacement or pump-type atomizer after multiple uses.
Auris Nasus Larynx, 2005
Mucinous cystadenocarcinoma of the salivary gland is a rare entity that has only recently been de... more Mucinous cystadenocarcinoma of the salivary gland is a rare entity that has only recently been described. This lesion was included in the 1991 World Health Organization Classification as "papillary cystadenocarcinoma," and that same year the United States Armed Forces Institute of Pathology classified it as "cystadenocarcinoma with or without a papillary component." Only a small proportion of salivary gland tumors are adenocarcinomas. Most mucinous cystadenocarcinomas affect the major salivary glands, particularly the parotid. These are low-grade malignancies, and most that occur in the minor salivary glands show very little aggressive behavior. These tumors are histologically similar to adenocarcinomas of the gastrointestinal tract. It is often difficult to differentiate them from other neoplasms. The differential diagnosis includes mucoepidermoid carcinoma, acinic cell carcinoma, salivary duct carcinoma, nasal adenocarcinoma, and metastatic carcinoma. This report describes the case of an 80-year-old man who presented with a painless swelling in his right upper lip that had been present for 1 month. Fine-needle aspiration biopsy of the lesion revealed inflammatory cells without an epithelial component. The treatment was wide excision, and there was no recurrence during 6 months of follow-up. The pathological diagnosis was low-grade mucinous cystadenocarcinoma of a minor salivary gland.
Auris Nasus Larynx, 2009
The goals of this study were to evaluate the long-term results of endoscopic endonasal dacryocyst... more The goals of this study were to evaluate the long-term results of endoscopic endonasal dacryocystorhinostomy (DCR) with or without a posterior mucosal flap and to compare the surgical success rates of that procedure in patients with a nasolacrimal duct obstruction. We retrospectively investigated the results of 78 endoscopic endonasal DCRs performed at the Baskent University, Department of Otolaryngology between December 2000 and March 2007 on 74 patients with a lacrimal obstruction. The patients were divided into two groups. During surgery, the posterior mucosal flap was preserved in 27 patients (group A) and removed in 47 patients (group B). All patients underwent intubation with a silicone tube at the conclusion of surgery. The silicone tube was removed within 6 months after surgery. The mean follow-up period was 36 months (range, 2-78 months). The results obtained were then compared. Granulation tissue and synechia developed between the lateral nasal wall and the middle turbinate in one patient in group A (revision surgery was not required). In group B, granulation tissue at the rhinostomy opening was found in seven patients, and in four of those subjects, the granulation tissue obstructed the neo-ostium. These four patients underwent a second operation. In group B, synechia was noted between the middle turbinate and the lateral nasal wall in two of 47 patients. In group A, the procedure was successful for all patients except one in whom granulation tissue developed, and in group B, the surgical success rate was 88.3%. In endoscopic endonasal DCR, the closure of bare bone with a posteriorly based nasal mucosal flap that creates an anastomosis between the lacrimal sac mucosa and the nasal mucosa decreases the formation of granulation tissue. But, there is no significant difference of success rate between two groups.
Journal of Cataract & …, 2000
Eighty-two eyes of 41 patients were included in the study. Twelve of 17 pediatric patients with c... more Eighty-two eyes of 41 patients were included in the study. Twelve of 17 pediatric patients with congenital cataract had bilateral simultaneous lensectomy, posterior capsulotomy, and anterior vitrectomy; 5 patients, aged 10 to 19 years, had bilateral extracapsular cataract extraction ( ...
Clinical Anatomy, 2010
Few authors have studied differences in craniofacial morphology of adults with chronic otitis med... more Few authors have studied differences in craniofacial morphology of adults with chronic otitis media (COM). We sought to compare the craniofacial measurements of patients with COM with otherwise healthy adults. The study group included 120 adult patients. The control group had 30 men and 30 women without evidence of otitis media; a COM group consisted of 30 men and 30 women with COM. Craniofacial measurements were assessed retrospectively using a two-dimensional reformatted CT method. Multiple linear (bony and cartilaginous auditory tube length, size of the mastoid, height of the jugular bulbus, intercochlear distance, bitemporal distance, distance between pharyngeal orifices, and some cephalometric cranial base distances), angular (auditory tube angle, cranial base angle), and area (axial and sagittal nasopharynx size) measurements were performed. In addition, petrosquamosal (Körner's) septum prevalence and size were evaluated. No statistically significant differences were found regarding craniofacial variables except mastoid size (mastoid depth and length). None of the craniofacial parameters showed significant differences between adults with COM and adults without evidence of otitis media, when age, sex, and race were considered. No statistically significant differences were found when mastoid size was compared with unilateral and bilateral COM. No statistically significant difference was found between mastoid size of the intact side and involved side of the unilateral patients with COM. Patients with unilateral and bilateral COM may be in the same group, genetically or environmentally, as far as mastoid size is concerned. Small mastoid size correlates with COM, but development of clinical disease should be under the control of different factors.
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 2010
Metaplastic Warthin tumor is a rarely seen subtype of Warthin tumor. It can resemble squamous car... more Metaplastic Warthin tumor is a rarely seen subtype of Warthin tumor. It can resemble squamous carcinomas histopathologically, because it contains atypical squamous cells on the necrotic surface. Making a diagnosis can become easier by knowing this entity of Warthin tumor well and by correlating the radiologic findings with pathology. In this case presentation, imaging features of a metaplastic Warthin tumor are presented together with its histopathologic findings. When a solid mass with peripheral enhancing cystic-necrotic component and well defined contour and capsule that shows early enhancement and washout is identified with imaging methods in parotid gland, metaplastic Warthin tumor should be indicated in the differential diagnosis before the histopathologic evaluation.
Kulak burun boğaz ihtisas dergisi : KBB = Journal of ear, nose, and throat, 2007
Osteomas are the most common benign tumors of the paranasal sinuses. They may be seen at all ages... more Osteomas are the most common benign tumors of the paranasal sinuses. They may be seen at all ages and show a male preponderance. A 54-year-old male patient presented with a complaint of nasal obstruction. Computed tomography of the paranasal sinuses showed three osteomas, nearly 5 mm in size, in both ethmoid sinuses and the right frontal sinus. Inquiry into the Gardner's syndrome was negative. No surgical treatment was performed at the patient's discretion. To our knowledge, the presence of multiple osteomas in the frontal and ethmoid sinuses has not been reported in the English literature.
Acta Oto-Laryngologica, 2006
Dysphagia is a common presenting complaint in otolaryngology practice, and there are many causes.... more Dysphagia is a common presenting complaint in otolaryngology practice, and there are many causes. Forestier syndrome is a rare cause of dysphagia. It is also known as diffuse idiopathic skeletal hyperostosis (DISH) syndrome or vertebral ankylosing hyperostosis. Forestier syndrome consists of anterolateral perivertebral ligament calcification. It was first described by Forestier and Rotes-Querol in 1950; diagnosis is primarily radiological and the etiology is unknown. In addition to dysphagia Forestier syndrome has been reported to cause laryngeal stridor, dyspnea, snoring and hoarseness. Other important symptoms associated with Forestier syndrome are stiffness and pain in the back, pain related to tendinitis, myelopathy related to core compression associated with the ossification of the posterior longitudinal ligament, and pain related to vertebral complications such as fracture or subluxation. We report six cases of Forestier syndrome as an etiologic factor in dysphagia and present clinical and radiological findings.
American Journal of Rhinology & Allergy, 2008
Ophthalmic surgery, lasers & imaging : the official journal of the International Society for Imaging in the Eye
A 48-year-old patient with a scleral-fixated posterior chamber intraocular lens had dislocation o... more A 48-year-old patient with a scleral-fixated posterior chamber intraocular lens had dislocation of the intraocular lens into the anterior chamber and associated pseudophakic bullous keratopathy. The patient underwent intraocular lens extraction and partial penetrating keratoplasty. Because an anterior chamber intraocular lens is easier to implant and has fewer complications, surgeons may want to consider this as the first choice for treatment. If the scleral-fixated posterior chamber intraocular lens is used, it must be implanted properly and meticulously to avoid complications.
The purpose of this study was to investigate iron (Fe), zinc (Zn), and copper (Cu) levels of aque... more The purpose of this study was to investigate iron (Fe), zinc (Zn), and copper (Cu) levels of aqueous humor, lens, and serum in nondiabetics and diabetics and to determine the effects of diabetes on Fe, Zn, and Cu contents in the lens. Fe, Zn, and Cu contents of aqueous humor, lens, and serum samples of 19 patients (9 nondiabetic patients with a mean age of 62.3 +/- 5.4 yr, and 10 diabetic patients with a mean age of 59.5 +/- 5.9 yr) were analyzed by atomic absorption spectrometry using a prospective study design. The lens levels of Cu in diabetic patients were significantly higher compared with nondiabetic patients (p = 0.02); however; there was no difference in the other elements (Zn, Fe; p = 0.28, p = 0.74, respectively). The levels of Fe, Zn, and Cu in the aqueous humor and serum of diabetic patients were not found to be statistically significant when compared to nondiabetics (p = 0.46, p = 0.11, p = 0.18, and p = 0.22, p = 0.43, p = 0.72, respectively). These results demonstrate that increased Cu content of the lens presumably has a greater association with the development of lens opacification in diabetics than Zn and Fe content.
Journal of medical case reports, 2008
Factitious cheilitis is a chronic condition characterized by crusting and ulceration that is prob... more Factitious cheilitis is a chronic condition characterized by crusting and ulceration that is probably secondary to chewing and sucking of the lips. Atopy, actinic damage, exfoliative cheilitis, cheilitis granulomatosa or glandularis, contact dermatitis, photosensitivity reactions and neoplasia should be considered in the differential diagnosis of crusted and ulcerated lesions of the lip. We present a 56 year-old female with an ulcerated and crusted lesion on her lower lip. The biopsy showed granulation tissue and associated inflammation but no malignancy. Based on the tissue examination and through clinical evaluation the diagnosis of factitious cheilitis was rendered. Thorough clinical history, utilization of basic laboratory tests and histopathologic evaluation are required to exclude other diseases and a thoruough psychiatric evaluation and treatment is vital for successful management of these patients.
Auris Nasus Larynx, 2009
ObjectiveThe goals of this study were to evaluate the long-term results of endoscopic endonasal d... more ObjectiveThe goals of this study were to evaluate the long-term results of endoscopic endonasal dacryocystorhinostomy (DCR) with or without a posterior mucosal flap and to compare the surgical success rates of that procedure in patients with a nasolacrimal duct obstruction.
Experimental and Clinical Transplantation, 2013
Objectives: Hearing impairment is a frequent problem that can easily influence the quality of lif... more Objectives: Hearing impairment is a frequent problem that can easily influence the quality of life for the individual. It may affect one's social and academic life. Knowledge regarding hearing impairment after renal transplant is sparse. It has been suggested that renal transplant improves hearing function. Potential ototoxic side effects may be related to immunosuppression with calcineurin inhibitors. In pediatric renal transplanted patients, we do not have enough information about this subject. We report 2 cases that developed sudden hearing loss after a renal transplant that was associated with high serum levels of tacrolimus. Case Reports: Two renal transplanted children (a 15-year-old boy and a 17-year-old girl), in the fourth year of their follow-up after transplant, developed symptomatic bilateral sudden hearing loss. There was a marked hearing impairment for the higher frequencies between 4000 and 8000 Hz in pure-tone audiometry evaluation. Also, a decrease of speech understanding was found, but the patients were not conscious of this problem. Hearing loss in these patients was not associated with any known risk factors such as chronic renal disease, ototoxic drugs, or acoustic trauma. Sudden hearing loss occurred under high serum levels of tacrolimus, and after dosage correction of tacrolimus pure-tone audiometry ruled out hearing loss progression for each patient. Conclusions: Awareness of this potential complication of tacrolimus may be helpful for early recognition and treatment.
Journal of Computer Assisted Tomography, 2007
Our aim was to research the enhancement features of parotid gland masses in detail and characteri... more Our aim was to research the enhancement features of parotid gland masses in detail and characterize if the masses were Warthin tumors, adenomas, or malignant tumors. The prospective study included 25 parotid tumors in 21 patients. Neck computed tomography (CT) was performed using a multislice CT unit. A full-neck CT examination was done at 30 seconds after completion of contrast injection, and then tumor-level images were obtained at 90 seconds and at 5 and 25 minutes. Computed tomography number (lesion density in Hounsfield units) was determined at each phase, and differences within and among tumor groups were statistically analyzed. Diagnoses were confirmed by histopathology. There were 11 Warthin tumors, 8 pleomorphic adenomas, 5 malignant tumors, and 1 basal cell adenoma. Ten Warthin tumors showed rapid contrast enhancement at 30 seconds and rapid reduction of enhancement from the first to the fourth phase. The basal cell adenoma showed also a peak enhancement at 30 seconds. Seven pleomorphic adenomas showed increased enhancement through the first 3 phases. Four malignant tumors showed peak enhancement at 90 seconds. Statistically significant differences within and among tumor groups were determined. The data suggest that peak tumor enhancement at 30 and 90 seconds, respectively, might identify Warthin and malignant tumors. Increased enhancement through all phases might be an indicator for diagnosing pleomorphic adenomas.
Ophthalmic Research, 2007
Background: To report two cases with previously undescribed fundus lesions as early ocular signs ... more Background: To report two cases with previously undescribed fundus lesions as early ocular signs of pseudoxanthoma elasticum (PXE). Methods: Clinical work-up including color photography and fundus fluorescein angiography (FFA). Results: A 10-year-old girl and an 8-year-old boy (siblings) presented with dermatological exacerbations of PXE. On ophthalmological examination, both patients showed multiple, round, and yellowish white lesions located from the perifoveal
Acta Oto-laryngologica, 2006
Dysphagia is a common presenting complaint in otolaryngology practice, and there are many causes.... more Dysphagia is a common presenting complaint in otolaryngology practice, and there are many causes. Forestier syndrome is a rare cause of dysphagia. It is also known as diffuse idiopathic skeletal hyperostosis (DISH) syndrome or vertebral ankylosing hyperostosis. Forestier syndrome consists of anterolateral perivertebral ligament calcification. It was first described by Forestier and Rotes-Querol in 1950; diagnosis is primarily radiological and the etiology is unknown. In addition to dysphagia Forestier syndrome has been reported to cause laryngeal stridor, dyspnea, snoring and hoarseness. Other important symptoms associated with Forestier syndrome are stiffness and pain in the back, pain related to tendinitis, myelopathy related to core compression associated with the ossification of the posterior longitudinal ligament, and pain related to vertebral complications such as fracture or subluxation. We report six cases of Forestier syndrome as an etiologic factor in dysphagia and present clinical and radiological findings.
Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology - ORAL SURG ORAL MED ORAL PATHO, 2010
Metaplastic Warthin tumor is a rarely seen subtype of Warthin tumor. It can resemble squamous car... more Metaplastic Warthin tumor is a rarely seen subtype of Warthin tumor. It can resemble squamous carcinomas histopathologically, because it contains atypical squamous cells on the necrotic surface. Making a diagnosis can become easier by knowing this entity of Warthin tumor well and by correlating the radiologic findings with pathology. In this case presentation, imaging features of a metaplastic Warthin tumor are presented together with its histopathologic findings. When a solid mass with peripheral enhancing cystic-necrotic component and well defined contour and capsule that shows early enhancement and washout is identified with imaging methods in parotid gland, metaplastic Warthin tumor should be indicated in the differential diagnosis before the histopathologic evaluation.
Otolaryngology - Head and Neck Surgery, 2006
Journal of Medical Case Reports, 2008
Introduction: Benign paroxysmal positional vertigo (BPPV) is the most common type of vertigo. It ... more Introduction: Benign paroxysmal positional vertigo (BPPV) is the most common type of vertigo. It is frequently seen in elderly patients, and the course of the attack may easily mimic cerebrovascular disease. A BPPV attack after a radiologic examination has not been reported previously. We report the cases of two patients who had BPPV attacks after radiologic imaging.
BMC Ear, Nose and Throat Disorders, 2007
Background: Reusable nasal-spray devices are frequently used in otolaryngologic examinations, and... more Background: Reusable nasal-spray devices are frequently used in otolaryngologic examinations, and there is an increasing concern about the risk of cross-contamination from these devices. The aim of our study was to determine, by means of microbiologic analysis, the safety of a positivedisplacement or pump-type atomizer after multiple uses.
Auris Nasus Larynx, 2005
Mucinous cystadenocarcinoma of the salivary gland is a rare entity that has only recently been de... more Mucinous cystadenocarcinoma of the salivary gland is a rare entity that has only recently been described. This lesion was included in the 1991 World Health Organization Classification as "papillary cystadenocarcinoma," and that same year the United States Armed Forces Institute of Pathology classified it as "cystadenocarcinoma with or without a papillary component." Only a small proportion of salivary gland tumors are adenocarcinomas. Most mucinous cystadenocarcinomas affect the major salivary glands, particularly the parotid. These are low-grade malignancies, and most that occur in the minor salivary glands show very little aggressive behavior. These tumors are histologically similar to adenocarcinomas of the gastrointestinal tract. It is often difficult to differentiate them from other neoplasms. The differential diagnosis includes mucoepidermoid carcinoma, acinic cell carcinoma, salivary duct carcinoma, nasal adenocarcinoma, and metastatic carcinoma. This report describes the case of an 80-year-old man who presented with a painless swelling in his right upper lip that had been present for 1 month. Fine-needle aspiration biopsy of the lesion revealed inflammatory cells without an epithelial component. The treatment was wide excision, and there was no recurrence during 6 months of follow-up. The pathological diagnosis was low-grade mucinous cystadenocarcinoma of a minor salivary gland.
Auris Nasus Larynx, 2009
The goals of this study were to evaluate the long-term results of endoscopic endonasal dacryocyst... more The goals of this study were to evaluate the long-term results of endoscopic endonasal dacryocystorhinostomy (DCR) with or without a posterior mucosal flap and to compare the surgical success rates of that procedure in patients with a nasolacrimal duct obstruction. We retrospectively investigated the results of 78 endoscopic endonasal DCRs performed at the Baskent University, Department of Otolaryngology between December 2000 and March 2007 on 74 patients with a lacrimal obstruction. The patients were divided into two groups. During surgery, the posterior mucosal flap was preserved in 27 patients (group A) and removed in 47 patients (group B). All patients underwent intubation with a silicone tube at the conclusion of surgery. The silicone tube was removed within 6 months after surgery. The mean follow-up period was 36 months (range, 2-78 months). The results obtained were then compared. Granulation tissue and synechia developed between the lateral nasal wall and the middle turbinate in one patient in group A (revision surgery was not required). In group B, granulation tissue at the rhinostomy opening was found in seven patients, and in four of those subjects, the granulation tissue obstructed the neo-ostium. These four patients underwent a second operation. In group B, synechia was noted between the middle turbinate and the lateral nasal wall in two of 47 patients. In group A, the procedure was successful for all patients except one in whom granulation tissue developed, and in group B, the surgical success rate was 88.3%. In endoscopic endonasal DCR, the closure of bare bone with a posteriorly based nasal mucosal flap that creates an anastomosis between the lacrimal sac mucosa and the nasal mucosa decreases the formation of granulation tissue. But, there is no significant difference of success rate between two groups.
Journal of Cataract & …, 2000
Eighty-two eyes of 41 patients were included in the study. Twelve of 17 pediatric patients with c... more Eighty-two eyes of 41 patients were included in the study. Twelve of 17 pediatric patients with congenital cataract had bilateral simultaneous lensectomy, posterior capsulotomy, and anterior vitrectomy; 5 patients, aged 10 to 19 years, had bilateral extracapsular cataract extraction ( ...