نتایج جستجو برای: choroidal tumor

تعداد نتایج: 436196  

2008
P. Sun H. Zhang Q. Wang G. M. Lanza S-K. Song S. A. Wickline J. Chen

Introduction Choroidal melanoma is the most common intraocular malignancy . Diffusion weighted MRI (DWI) and the derived apparent diffusion coefficient (ADC) map has proven to be useful in tumor identification and treatment response monitoring . However, DWI of intraocular tumor, such as choroidal melanoma, has not been reported to date. The objective of the present study is to quantify ADC of ...

Journal: :Archives of ophthalmology 2001
J M Romero P T Finger R B Rosen R Iezzi

OBJECTIVE To evaluate the reliability of 3-dimensional ultrasound (3D-US) for the measurement of choroidal melanomas. DESIGN Retrospective case series. PARTICIPANTS Forty-two consecutive cases of choroidal melanoma imaged with 3D-US. METHODS Tumor measurements obtained with ophthalmoscopy, transillumination, standard ultrasound techniques, 3D-US, and pathological studies. Tumor diameters,...

2017
Tomoka Ishida Kei Morohoshi Yayoi Takeuchi Ryoko Soma Minami Uchida Kyoko Ohno-Matsui

Purpose To report the swept-source optical coherence tomographic (OCT) findings in two eyes with choroidal metastases. Observations Two patients with choroidal metastasis were studied. The metastasis was from a breast cancer in Case 1 and from a lung cancer in Case 2. In Case 1, swept-source OCT showed a highly reflective solid tumor with low optical reflective tissues that had replaced the c...

2015
Ann Q. Tran James A. Eadie Michael M. Altaweel

Purpose. To describe the enhanced depth imaging optical coherence tomography (EDI-OCT) findings in a patient with an extra macula choroidal melanoma before and after treatment. Methods. Observational case report. Results. A 45 year-old Caucasian male patient was referred to retina clinic for management of choroidal melanoma. Examination revealed a nasal choroidal melanoma while EDI-OCT illustra...

Journal: :Medicina 2022

Choroidal melanoma is one of the most malignant tumors organ vision, development which associated with risk metastasis and possibility death, indicates relevance search application effective methods treatment this pathology. To date, in choroidal melanoma, preference given to organ-preserving aimed at achieving local control over tumor. One promising techniques photodynamic therapy, a method ba...

Journal: :Archives of ophthalmology 1998
I U Scott T G Murray J R Hughes

OBJECTIVE To investigate the sensitivity of echography vs magnetic resonance imaging (MRI) or computed tomography (CT) for detecting extraocular extension of choroidal malignant melanoma. DESIGN AND SETTING Retrospective review at a university referral center. PARTICIPANTS All patients with histopathologically proven extraocular extension of choroidal malignant melanoma evaluated at the Bas...

2012
Shahar Frenkel Jacob Pe'er

Our case represents a unique occurrence of pigmented choroidal tumor that clinically appeared as choroidal melanoma and was treated accordingly. At the same time, while evaluating the patient for systemic metastases of uveal melanoma, she was diagnosed as having lung carcinoma. Events that led to the enucleation of the eye enabled a histological diagnosis: pulmonary adenocarcinoma. In our case,...

2017
Courtney M. Crawford Okezie C. Igboeli

Purpose: Choroidal osteoma is a rare tumor which features intraocular bone formation. This tumor can be complicated by choroidal neovascularization which is a cause of impaired vision in this condition. We present a case of choroidal osteoma with choroidal neovascularization as a complication. Methods: Case report with clinical and angiographic correlation. Results: A 16 year old female present...

2014
Samuray Tuncer Zafer Cebeci

Photodynamic therapy (PDT) has been used for treatment of various intraocular tumors including choroidal hemangioma, vasoproliferative tumor, amelanotic choroidal melanoma and choroidal neovascular membrane due to choroidal osteoma. This case report documents the effect of PDT for a presumed acquired retinal astrocytoma. A 42-year-old female with a juxtapapillary acquired astrocytoma was treate...

Journal: :acta medica iranica 0
f. asadi amoli m. taher-rajabi m. r. esfahani a. sadeghi

non-hodgkin lymphoma (nhl) is one of the masquerade syndromes of malignant melanoma that can occur with two main patterns of presentations in the eye: metastatic involvement of uveal tract, and primary involvement of retina. we report ophthalmic, imaging and histopathological findings in the first case diagnosed as primary choroidal nhl without central nervous system or systemic involvement. a ...

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