نتایج جستجو برای: intraocular tumors

تعداد نتایج: 196823  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده مهندسی برق و کامپیوتر 1392

طی دهه اخیر، پردازش تنک سیگنال ها به عنوان ابزاری قدرتمند و جایگزینی کارا برای تبدیل های کلاسیک، توجه زیادی را به خود جلب کرده است. استفاده از نمایش تنک سیگنال ها در مسائل طبقه بندی نیز نتایج موفقیت آمیزی به همراه داشته است. با این حال، کیفیت عملکرد این طبقه بندی کننده ها در شرایط سخت، از جمله در مواردی که داده های هر طبقه تنوع زیادی داشته و یا ابعاد داده ها در مقایسه با تعداد داده های آموزشی ز...

2016
Ann J. Ligocki Jerry Y. Niederkorn

PURPOSE Immune privilege of the eye protects the nonregenerative ocular tissues from innate and adaptive immune-mediated inflammation. In the case of intraocular tumors, immune privilege can be arrested to allow for immune-mediated rejection. Activation of innate immune cells can contribute to necrosis of the intraocular tumor and bystander ocular tissue. Identifying the cellular components of ...

Journal: :Investigative ophthalmology & visual science 2009
Ludwig M Heindl Tanja N Hofmann Harald L J Knorr Carmen Rummelt Falk Schrödl Ursula Schlötzer-Schrehardt Leonard M Holbach Gottfried O H Naumann Friedrich E Kruse Claus Cursiefen

PURPOSE To analyze whether lymphatic vessels can invade the normally alymphatic eye (lymphangiogenesis) in patients with malignant melanoma of the ciliary body with extraocular extension and to correlate these findings with metastasis-free survival. METHODS Ten enucleated globes with the histopathologically and immunohistochemically (S-100, HMB-45, PNL-2, and Melan-A) confirmed diagnosis of m...

Haghbin, Mohammad Ali, Moradi, Siavash, Noroozi, Mehrdad, Shabani , Mohammad, Sharifi, Ali, Zamiri, Hamid Khosro,

Background & Objective: The induction of anesthesia, laryngoscopy and endotracheal intubation can be associated with adverse hemodynamic response and increased intraocular pressure. The aim of this study was to evaluate intraocular pressure and hemodynamic changes after laryngoscopy and endotracheal intubation with three methods of laryngoscopy (Macintosh, Maccoy and Video laryngoscope).Materia...

Alireza Mehdizadeh Amin Hosseinzadeh

Introduction: The term glaucoma refers to a group of diseases that have a characteristic optic neuropathy with associated visual field loss in common. Intraocular pressure has been considered to be the only causal factor for glaucoma and the only factor that can be manipulated to alter the course of the disease. But considering high intraocular pressure as the only factor responsible for glauco...

H. Ashraf, Masoomeh Eghtedari

Ocular involvement in lymphoma is a relatively rare condition that can result from a primary intraocular lymphoma or an intraocular manifestation of systemic lymphoma. Lymphoma manifestations frequently masquerade as other more benign intraocular conditions including allergic or infectious conjunctivitis, uveitis, multiple evanescent white dot syndrome, acute retinal necrosis, or herpetic retin...

Journal: :journal of fasting and health 0
gonen baser 1429 sok. no: 1/3ufuk apt. alsancak-konak eyyup karahan van education and investigation hospital sinan bilgin ozel medifema hospital

introduction: this study aimed to investigate the diurnal intraocular pressure fluctuations under dehydration conditions and the relationship between the intraocular pressure fluctuations and blood pressure. methods: the intraocular pressures (iop), body weights, as well as systolic and diastolic blood pressures (sbp, dbp) of 36 fasting healthy volunteers were recorded at 8:00 a.m. and 5:00 p.m...

H. Shahryari H.R. Jahadi M. Farvardin M. Mehdizadeh, M. Mehryar M.H. Roozitalab N. Owji

Herein we describe a case of intraocular melanoma in a17-year old leukemic patient.  The history, histological findings of the enucleated eye, blood and bone marrow of the patient were investigated. The enucleated eye contained epitheloid cell type melanoma instead of leukemic cell infiltration.  We conclude that intraocular malignant melanoma can occur in acute lymphoblastic leukemia.

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