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Yerli H, Agildere AM, Aydin E, Geyik E, Haberal N, Kaskati T, Oguz D, Ozluoglu LN. Value of apparent diffusion coefficient calculation in the differential diagnosis of parotid gland tumors. Acta Radiol 2007; 48:980-7. [PMID: 17957512 DOI: 10.1080/02841850701501717] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND The differential diagnosis of parotid gland tumors is often difficult with conventional magnetic resonance imaging. PURPOSE To determine whether the calculation of the apparent diffusion coefficient (ADC) is valuable for making the differential diagnosis of parotid tumors. MATERIAL AND METHODS Thirty parotid masses in 28 patients and 24 healthy parotid glands in 12 controls were examined in this prospective study. Diffusion-weighted magnetic resonance imaging with echo-planar spin-echo sequences was used to evaluate each subject. The ADC of each tumor and each healthy parotid gland was calculated. Tumor diagnoses were confirmed by the results of histopathologic analysis. RESULTS The following types of masses were identified: 11 Warthin tumors, nine pleomorphic adenomas, seven malignant tumors, one basal cell adenoma, and two benign cysts. The mean ADC value for the Warthin tumors was 0.97+/-0.16 x 10(-3) mm(2)/s, for the pleomorphic adenomas was 1.74+/-0.37 x 10(-3) mm(2)/s, for the malignant tumors was 1.04+/-0.35 x 10(-3) mm(2)/s, and for the normal parotid glands was 0.34+/-0.20 x 10(-3) mm(2)/s. The respective ADC value for the single basal cell adenoma was 1.40 x 10(-3) mm(2)/s. Statistically significant differences were identified between the subjects with pleomorphic adenoma and those with another type of parotid tumor, and between subjects with healthy parotid glands and those with a tumor. CONCLUSION Calculating the ADC appears to be useful in differentiating pleomorphic adenomas from other types of parotid gland tumors.
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Aydin E, Demir HD, Batioglu F, Sezer E. Atypical Fundus Lesions in Juvenile Pseudoxanthoma Elasticum. Ophthalmic Res 2007; 39:344-7. [DOI: 10.1159/000109990] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2007] [Accepted: 06/18/2007] [Indexed: 11/19/2022]
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Akkuzu G, Akkuzu B, Aydin E, Derbent M, Ozluoglu L. Congenital partial arhinia: a case report. J Med Case Rep 2007; 1:97. [PMID: 17883831 PMCID: PMC2064923 DOI: 10.1186/1752-1947-1-97] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2007] [Accepted: 09/20/2007] [Indexed: 11/10/2022] Open
Abstract
Congenital arhinia is an extremely rare anomaly consisting of an absence of external nasal structures and nasal passages. Fewer than 30 cases have been reported. Patients with a familial absence of the nose have been reported, but the effects of genetic and maternal factors are unknown. Midface hypoplasia may accompany arhinia. Accompanying malformations are thought to be caused by an absent or rudimentary nose. A patient with partial congenital arhinia is presented and the embryology and literature review are discussed.
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Aydin E, Kazi AA, Peyman GA, Esfahani MR, Muñoz-Morales A, Kivilcim M, Caro-Magdaleno M. [Retinal toxicity of intravitreal doxycycline. A pilot study]. ACTA ACUST UNITED AC 2007; 82:223-8. [PMID: 17443427 DOI: 10.4321/s0365-66912007000400007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To assess the retinal toxicity of varying concentrations of intravitreally administered doxycycline, a member of tetracycline family. METHODS Fourteen New Zealand albino rabbits, divided into 5 groups, were used for this study. The initial concentration of doxycycline (100 mg) was titrated using 5% dextrose solution to the following concentrations in a volume of 0.1 ml: 2000 microg, 1000 microg, 500 microg, 250 microg, 125 microg, and 62.5 microg. Each concentration was injected into 2 rabbit eyes. Two control eyes received 0.1 ml of 5% dextrose solution. All animals were examined before and after injection using indirect ophthalmoscopy and slit-lamp biomicroscopy. Electroretinography (ERG) was performed on all animals prior to the intravitreal injection and 2 weeks post-injection. The animals were re-examined at this time by indirect ophthalmoscopy and slit-lamp biomicroscopy and were then subjected to euthanasia. Their eyes were enucleated and examined using light microscopy. RESULTS The doxycycline injected group exhibited significant decreases in ERG of the eyes injected with 2000 microg, 1000 microg, 500 microg, and 250 microg/0.1 ml. No significant changes in the ERG were observed following the injection of lesser concentration levels. There were no signs of retinal toxicity on slit-lamp examination, indirect ophthalmoscopy, or light microscopy in all the eyes injected with doxycycline concentrations of 125 microg or lower. CONCLUSIONS Doxycycline injected intravitreally appeared safe at concentrations of 125 microg/0.1 ml or less in albino rabbits. Intravitreal doxycycline may be beneficial, and is an inexpensive alternative drug which could be used in the treatment of bacterial endophthalmitis particularly against resistant Staphylococcus aureus organisms.
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Bayram B, Aydin E, Uckan S. External auditory canal injury following removal of an impacted third molar: a case report. J Oral Maxillofac Surg 2007; 65:1372-4. [PMID: 17577506 DOI: 10.1016/j.joms.2005.11.072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2005] [Revised: 11/07/2005] [Accepted: 11/24/2005] [Indexed: 11/24/2022]
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Yerli H, Aydin E, Coskun M, Geyik E, Ozluoglu LN, Haberal N, Kaskati T. Dynamic multislice computed tomography findings for parotid gland tumors. J Comput Assist Tomogr 2007; 31:309-16. [PMID: 17414771 DOI: 10.1097/01.rct.0000236418.82395.b3] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE 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. METHODS 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. RESULTS 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. CONCLUSIONS 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.
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Aydin E, Demir HD, Demirturk F, Calıskan AC, Aytan H, Erkorkmaz U. Corneal topographic changes in premenopausal and postmenopausal women. BMC Ophthalmol 2007; 7:9. [PMID: 17501998 PMCID: PMC1877796 DOI: 10.1186/1471-2415-7-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2006] [Accepted: 05/14/2007] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To asses the effect of menopause on the corneal curvature changes using corneal computerized videokeratography (CVK) in premenopausal and postmenopausal healthy women. METHODS Thirty-six postmenopausal women with mean ages of 49.2 (range 39 to 57) were enrolled in this randomized, prospective study, comparing with 26 healthy controls with mean ages of 38.5 +/- 4.9 (range 32 to 49). Subjects were determined to be postmenopausal, by the Gynecology and Obstetrics Department, based on blood Follicular Stimulating Hormone (FSH), Luteinizing Hormone (LH), Estradiol, Progesterone levels and clinical complaints. Complete ophthalmic examination and CVK using Haag-Streit System was performed in both premenopausal and postmenopausal women. RESULTS Mean horizontal curvature and vertical curvature of central corneal power in premenopausal women were 43.5 +/- 1.25 Diopter (D), and 44.1 +/- 1.53 D. Mean horizontal curvature and vertical curvature of central corneal power in postmenopausal women were 43.9 +/- 1.4 D, and 44.6 +/- 1.3 D. The mean keratometric astigmatisms of premenopausal and postmenopausal women were 0.81 +/- 0.57 D (4-179 degrees), 0.74 degrees +/- 0.5 D (1-180 degrees) respectively. No significant corneal curvature changes were detected between premenopausal and postmenopausal groups (P > 0.05). On the other hand, we only found negative but significant correlation between horizontal corneal curvature and estrogen level of postmenopausal women (r = -0.346, p = 0.038). CONCLUSION Menopause is physiologic process and may also affect corneal topographic changes. In postmenopausal women, corneal steeping was observed minimally compared to premenopausal women. The results suggest that changes in estrogen level of women with menopause are associated with slightly alteration of horizontal curvature of cornea.
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Aydin E, Hizal E, Akkuzu B, Azap O. Risk of contamination of nasal sprays in otolaryngologic practice. BMC EAR, NOSE, AND THROAT DISORDERS 2007; 7:2. [PMID: 17352835 PMCID: PMC1828065 DOI: 10.1186/1472-6815-7-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2006] [Accepted: 03/13/2007] [Indexed: 11/22/2022]
Abstract
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 positive-displacement or pump-type atomizer after multiple uses. Methods A reusable nasal spray bottle, pump, and tips were used in the nasal physical examination of 282 patients admitted to a tertiary otolaryngology clinic. The effectiveness of 2 different methods of prophylaxis against microbiologic contamination (the use of protective punched caps or rinsing the bottle tip with alcohol) was compared with that of a control procedure. Results Although there was no statistically significant difference in positive culture rates among the types of nasal spray bottles tested, methicillin-resistant coagulase-negative staphylococci were isolated in 4 of 198 cultures. Conclusion Given these findings, we concluded that additional precautions (such as the use of an autoclave between sprays, disposable tips, or disposable devices) are warranted to avoid interpatient cross-contamination from a reusable nasal spray device.
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Can F, Demirbilek M, Ozluoglu L, Haberal N, Akkuzu B, Aydin E, Arslan H. R2288 Mycological and pathologicalfindings of sinus material from patients with chronic sinusitis. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)72127-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Akkuzu G, Aydin E, Bilezikçi B, Akkuzu B, Ozluoglu LN. Malakoplakia in nasal vestibule. Otolaryngol Head Neck Surg 2006; 135:636-7. [PMID: 17011431 DOI: 10.1016/j.otohns.2005.03.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2004] [Accepted: 03/10/2005] [Indexed: 11/16/2022]
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Aydin E, Ozluoglu LN, Demirhan B, Arikan U. Follicular dendritic cell sarcoma of the tonsil: case report. Eur Arch Otorhinolaryngol 2006; 263:1155-7. [PMID: 16896752 DOI: 10.1007/s00405-006-0124-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2005] [Accepted: 06/28/2006] [Indexed: 11/30/2022]
Abstract
Follicular dendritic cell sarcomas are unusual, and extranodal origin is extremely rare. The English literature contains only eight cases in which this sarcoma has been presented as a tonsillar mass. We report a new case of follicular dendritic cell sarcoma of the tonsil in a 76 year old woman. The patient underwent diagnostic tonsillectomy for a left tonsillar mass, and follicular dendritic cell sarcoma was diagnosed based on histopathological and immunoperoxidase findings. Postoperative radiotherapy was performed. The patient is alive and disease-free at 4 years of follow-up. Without a high index of suspicion, this entity can easily be missed. We believe that follicular dendritic cell sarcoma should be included in the differential diagnosis for any tonsillar mass.
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Abstract
PURPOSE To evaluate the effect of topically administered agents doxycycline, triamcinolone, low molecular weight heparin (LMWH), and flurbiprofen on experimental corneal neovascularization in rats. METHODS Chemical cauterization of cornea was performed in 36 eyes of 36 rats by using silver nitrate/potassium nitrate sticks. Topical instillation of doxycycline, triamcinolone, LMWH, flurbiprofen, and normal saline solution was continued for 7 days. Percent areas of cornea covered by neovascularization and covered by scar in each group were calculated by use of computer software on digital photographs. Groups were compared for any significant (P < 0.05) differences among them. RESULTS The means of percent area of corneal neovascularization in triamcinolone, doxycycline, flurbiprofen, LMWH, and control groups were 13.3%, 35.5%, 50.6%, 66.7%, and 74.9%, respectively. The triamcinolone and doxycycline groups were different from control group (P < 0.05). There was no significant difference in the percent area of neovascularization between the LMWH and flurbiprofen groups compared with the controls. Although the effects of LMWH and flurbiprofen were not significant, there seemed to be a trend, and the lack of significance may be related to small sample size. Because the mechanisms of action of these agents are not identical to each other, performing other studies using combinations of them seems to be reasonable. There were no significant differences in percent area of corneal scar among groups. CONCLUSION Topical instillation of commercially available triamcinolone and doxycycline seems to diminish corneal neovascularization caused by chemical cauterization of cornea in rats.
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Aydin E, Uysal S, Akkuzu B, Can F. Nasal myiasis by fruit fly larvae: a case report. Eur Arch Otorhinolaryngol 2006; 263:1142-3. [PMID: 16832625 DOI: 10.1007/s00405-006-0112-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2006] [Accepted: 02/09/2006] [Indexed: 11/25/2022]
Abstract
We report a case of human nasal myiasis caused by fruit fly larvae in a 33-year-old man who visited the south coast of Turkey. The fruit fly (Drosophila melanogaster) is endemic in the southern part of Turkey. Infestation with fruit fly larvae must be considered in patients who are visiting areas of the world where Drosophila is endemic. This is the first reported case of fruit fly larvae causing human nasal myiasis. The clinical presentation and treatment strategies are discussed.
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Aydin E, Akdogan V, Akkuzu B, Kirbaş I, Ozgirgin ON. Six cases of Forestier syndrome, a rare cause of dysphagia. Acta Otolaryngol 2006; 126:775-8. [PMID: 16803720 DOI: 10.1080/00016480500504192] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
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.
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Aydin E, Turkoglu S, Ozen O, Akkuzu B. Mucinous cystadenocarcinoma of a minor salivary gland in the upper lip: case report. Auris Nasus Larynx 2006; 32:301-4. [PMID: 15923100 DOI: 10.1016/j.anl.2005.03.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2004] [Revised: 02/21/2005] [Accepted: 03/25/2005] [Indexed: 11/22/2022]
Abstract
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.
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Peyman GA, Kazi AA, Riazi-Esfahani M, Aydin E, Kivilcim M, Sanders DR. The Effect of Combinations of Flurbiprofen, Low Molecular Weight Heparin, and Doxycycline on the Inhibition of Corneal Neovascularization. Cornea 2006; 25:582-5. [PMID: 16783147 DOI: 10.1097/01.ico.0000220767.73660.3a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE To determine the efficacy of various combinations of flurbiprofen, low molecular weight heparin (LMWH), and doxycycline on the inhibition of corneal neovascularization in rats. METHODS Chemical cauterization of the cornea in 32 eyes of 32 rats was performed using silver nitrate/potassium nitrate sticks. The animals were divided into 4 groups. Topical instillation of 0.015% flurbiprofen with 5 mg/mL LMWH (group 1); flurbiprofen with 10 mg/mL doxycycline (group 2); doxycycline with LMWH (group 3), and saline (group 4; control) was performed twice a day for 7 days. Slit-lamp photography was used to determine the percent areas of cornea covered by neovascularization and also by scar in each group. The means were compared to find any significant (P < 0.05) difference between groups. The animals were euthanized and the eyes enucleated for histological evaluation. RESULTS The mean of percent area of corneal neovascularization 5 in group 1 was 48.5 +/- 13.1; group 2, 6.6 +/- 5.5; group 3, 22.0 +/- 27.6 and group 4, 64.6 +/- 9. The means of percent area of neovascularization in groups 2 and 3 were significantly lower compared with control and group 1. There was no significant difference in the percent corneal neovascularization between groups 2 and 3 or between group 1 and the control group. Histological findings were consistent with slit-lamp evaluations. CONCLUSIONS Topical instillation of combinations of doxycycline with either flurbiprofen or LMWH can effectively inhibit corneal neovascularization made by chemical cauterization of the cornea in rats.
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Aydin E, Akkuzu G, Akkuzu B, Bilezikci B. Frontal mucocele with an accompanying orbital abscess mimicking a fronto-orbital mucocele: case report. BMC EAR, NOSE, AND THROAT DISORDERS 2006; 6:6. [PMID: 16620377 PMCID: PMC1458354 DOI: 10.1186/1472-6815-6-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2006] [Accepted: 04/18/2006] [Indexed: 11/10/2022]
Abstract
Background Mucoceles are slowly expanding cystic lesions with respiratory epithelium containing mucus most commonly affecting the frontal and ethmoidal sinuses. They are caused by obstruction of sinus ostium. Mucoceles exert pressure on the bony boundaries and due to the proximity to the brain and orbit extension to these areas are common. Case presentation A case of a frontal mucocele with an accompanying orbital abscess mimicking a fronto-orbital mucocele is reported. A 77 year old female patient suffering from left sided proptosis and pain around the left eye was admitted to our department. She had a history of left frontal sinus mucocele one year ago that was offered an osteoplastic frontal sinus surgery that the patient refused. Patient had limitation of eye movements. Fundoscopic examination revealed a minimal papilledema. Coronal computerized tomography and orbital magnetic resonance imaging showed a frontal mucocele with suspicious erosion of the orbital roof and a superiorly localized extraconal mass displacing the orbit lateroinferiorly. Frontal and orbital masses had similar intensities. Thus surgery was planned for a fronto-orbital mucocele. During surgery no defect was found on the orbital roof. Frontal mucocele and orbital cystic mass was removed separately. Pathological examination showed a frontal mucocele and an orbital abscess wall. Postoperatively eye movements returned to normal and papilledema resolved. Conclusion Fronto-orbital mucoceles are commonly encountered pathologies, but frontal mucocele with an orbital abscess is a rarely seen and should be kept in mind because their treatments differ.
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Abstract
Malignant eccrine poroma was first described by Pinkus and Mehregon in 1963. Because of the histologic characteristics of the tumor, these authors concluded that the tumor was likely of eccrine origin. Malignant eccrine poroma originates from the intraepidermal ductal portion of the eccrine gland. Like other tumors of skin adnexa, malignant eccrine poroma is a rare tumor. It mostly affects older persons. Clinical diagnosis is difficult, and lesions are often mistakenly identified as squamous cell carcinoma or pyogenic granuloma. We report a case of malignant eccrine poroma invading the parotid gland. A 65-year-old man presented with an ulcerated mass (2x3 cm) below the ear lobule of 3 months' duration. The mass was fixed to the skin and underlying parotid gland. The lesion was treated using a superficial parotidectomy approach including the overlying skin. Simultaneous neck dissection was performed. The diagnosis was malignant eccrine poroma invading the parotid gland.
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Abstract
Subcutaneous emphysema is the condition in which air or other gases penetrate the skin and submucosa causing soft-tissue distention. This type of emphysema may be traumatic, iatrogenic or may occur spontaneously. This report describes the youngest case of subcutaneous emphysema related to dental treatment that has been documented to date. In addition to the patient's age, the case is of interest because subcutaneous emphysema is a rare complication of dental therapy.
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Cumurcu T, Sahin S, Aydin E. Serum homocysteine, vitamin B 12 and folic acid levels in different types of glaucoma. BMC Ophthalmol 2006; 6:6. [PMID: 16504073 PMCID: PMC1402326 DOI: 10.1186/1471-2415-6-6] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2005] [Accepted: 02/23/2006] [Indexed: 01/25/2023] Open
Abstract
Background This study was performed to compare levels of serum homocysteine (Hcy), vitamin B12 and folic acid in patients with primary open-angle glaucoma (POAG), pseudoexfoliative glaucoma (PEXG), normotensive glaucoma (NTG) and healthy controls. Methods Twentyfive patients with POAG, 24 with PEXG, and 18 with NTG, along with 19 control healthy subjects were included this prospective study. Levels of serum Hcy were measured using immunoassay, and those of serum vitamin B12 and folic acid were measured using competitive chemiluminescent enzyme immunoassay. Results The mean Hcy concentration in the PEXG group was significantly higher (P < 0.001) as compared to the other groups. There were no significant differences with respect to the mean Hcy concentrations among other groups (P > 0.05). There were no statistical differences in serum vitamin B12 levels among POAG, PEXG, NTG and control subjects (P > 0.05). The mean serum folic acid level was significantly lower in the subjects with PEXG (P < 0.009). However, the mean folic acid concentrations among the other groups did not differ significantly (P > 0.05). Conclusion Elevated levels of Hcy in PEXG may explain the role of endothelial dysfunction among patients with PEXG.
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Abstract
PURPOSE To assess the retinal toxicity of various concentrations of intravitreally administered moxifloxacin, a fourth-generation fluoroquinolone. METHODS Ten New Zealand albino rabbits were divided into five groups. The initial concentration of moxifloxacin (400 mg/250 mL) was titrated using 5% dextrose solution to concentrations (320 microg/0.1 mL, 160 microg/0.1 mL, 100 microg/0.1 mL, and 50 microg/0.1 mL) that were injected intravitreally into 1 eye of each rabbit. Two control eyes were injected intravitreally with 0.1 mL of 5% dextrose solution. All animals were examined before and after injection by indirect ophthalmoscopy and slit-lamp biomicroscopy; electroretinography (ERG) was performed on all animals. The animals were killed, and their eyes were enucleated and examined with light microscopy. RESULTS Remarkable decreases in ERG findings were noted in the group injected with moxifloxacin at a concentration of 320 microg/0.1 mL. No meaningful ERG changes were observed in eyes injected with moxifloxacin at other concentrations. There were no signs of retinal toxicity during slit-lamp examination, indirect ophthalmoscopy, or light microscopy in any eyes injected with moxifloxacin concentrations of < or =160 microg/0.1 mL. CONCLUSIONS Intravitreal injection of moxifloxacin at a concentration of < or =160 microg/0.1 mL appeared nontoxic in the rabbit eye.
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Abstract
PURPOSE To assess the retinal toxicity of varying concentrations of intravitreally injected garenoxacin. METHODS Twenty eyes of 20 New Zealand albino rabbits were used for this study. The animals were anesthetized with ketamine (35-50 mg/kg) and xylazine (3-5 mg/kg). Garenoxacin was titrated using distilled water to the following concentrations: 4,000, 2,000, 1,000, 400, 200, and 100 microg/0.1 mL. Each concentration was injected intravitreally (0.1 mL) into three rabbit eyes. Three control eyes were injected with 0.1 mL of balanced saline solution. All animals were examined before and after injection by indirect ophthalmoscopy and slit-lamp biomicroscopy. Electroretinography was performed on all animals before intravitreal injection and 14 days after injection. The animals were examined by indirect ophthalmoscopy and slit-lamp biomicroscopy before they were killed; the eyes were enucleated and examined with light microscopy. RESULTS No electroretinographic changes or signs of retinal toxicity by slit-lamp examination, indirect ophthalmoscopy, or light microscopy were seen in any eyes 14 days after intravitreal injection of garenoxacin (< or =4,000 microg/0.1 mL). CONCLUSIONS Garenoxacin injected intravitreally appeared safe at concentrations of < or =4,000 microg/0.1 mL.
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Kazi AA, Jermak CM, Peyman GA, Aydin E, Riazi-Esfahani M. Intravitreal Toxicity of Levofloxacin and Gatifloxacin. Ophthalmic Surg Lasers Imaging Retina 2006; 37:224-9. [PMID: 16749259 DOI: 10.3928/15428877-20060501-07] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND AND OBJECTIVE To assess the retinal toxicity of varying concentrations of intravitreally injected gatifloxacin and levofloxacin. MATERIALS AND METHODS In this experimental, controlled study, levofloxacin (initial concentration = 25 mg/mL) and gatifloxacin (initial concentration = 2 mg/mL) were titrated using 5% dextrose solution to concentrations of 2,500 to 156 microg/0.1 mL and 400 to 50 microg/0.1 mL, respectively. Each concentration was injected intravitreally into two rabbit eyes (one eye per animal); two control eyes were injected with 0.1 mL of 5% dextrose solution. All animals were examined and electroretinography was performed before and 14 days after injection. The animals were killed at 14 days; the eyes were enucleated and prepared for light microscopy. RESULTS The levofloxacin group exhibited significant decreases in electroretinography in the eyes injected with 1,250 and 2,500 microg. No signs of retinal toxicity were observed on slit-lamp examination, indirect ophthalmoscopy, or light microscopy in all eyes injected intravitreally with 625 microg or less of levofloxacin or in any eyes given gatifloxacin. CONCLUSION Intravitreally injected concentrations of 625 microg or less of levofloxacin and 400 microg or less of gatifloxacin appeared nontoxic.
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Yerli H, Teksam M, Aydin E, Coskun M, Ozdemir H, Agildere AM. Basal cell adenoma of the parotid gland: dynamic CT and MRI findings. Br J Radiol 2005; 78:642-5. [PMID: 15961849 DOI: 10.1259/bjr/32453517] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Imaging findings in basal cell adenoma (BCA) of the parotid gland have been rarely reported. We report dynamic CT and MRI findings of BCA in the parotid gland in a 78-year-old woman. Dynamic CT study demonstrated strong multinodular contrast enhancement in the early phase which decreased gradually in the later phases. The mass was isointense on T(1) weighted and hyperintense on T(2) weighted MR images with a central haemorrhagic-necrotic component. The microscopic findings were consistent with membranous type BCA.
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Sirmali M, Gezer S, Aydin E, Kaya S. Giant primary mediastinal hydatid cyst causing Horner's syndrome: report of a case. Acta Chir Belg 2005; 105:221-3. [PMID: 15906922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
As the liver and the lungs are the most common sites for hydatid cysts, a primary mediastinal involvement is quite rare. The symptoms related to primary mediastinal hydatid cysts usually depend on the size, location and compression to nearby structures. Presenting a 51-year-old male patient with the symptoms of Horner's Syndrome, we draw attention to a rare complication of a giant primary mediastinal hydatid cyst and its challenging management.
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