نتایج جستجو برای: choroidal tumor
تعداد نتایج: 436196 فیلتر نتایج به سال:
Purpose The purpose of this study was to perform a genome-wide scan for polymorphisms associated with risk of vision loss from radiation complications in patients treated with proton beam irradiation for choroidal melanoma. Methods We identified a cohort of 126 patients at high risk of radiation complications due to tumor location within 2 disc diameters of the optic nerve and/or fovea who pr...
A 57-year-old woman presented to her ophthalmologist because of rapid deterioration in vision. Dilated funduscopic examination of the right eye showed an elevated, yellow-orange choroidal mass temporal to the fovea; a complete retinal detachment was present in the left eye. The patient was referred to an oncologist. Computerized tomography of the brain, thorax, abdomen, and pelvis were obtained...
Choroidal osteoma is a rare, benign tumor, usually diagnosed in healthy adult women in their second or third decade of life. Though its etiology and pathogenesis are unclear, it is usually diagnosed due to its typical clinical features of yellowish-orange colored subretinal lesion at posterior pole and a dense echogenic plaque persisting even in lower gains on B-scan ultrasonography. Mostly uni...
BACKGROUND/AIMS The purpose of this study was to examine the clinical presentations and pathological features of spontaneously necrotic choroidal melanomas. METHODS The clinical and histological features of patients who underwent enucleation for uveal melanoma from 1989 to 2012 at Emory University and were found to have spontaneously necrotic choroidal melanomas were retrospectively analyzed....
PURPOSE To report the effectiveness of indocyanine green mediated photothrombosis (IMP) combined with high dose (4 mg/0.16 ml) intravitreal bevacizumab (IVB) as adjunctive therapy for management of isolated choroidal metastasis from breast cancer. METHODS This retrospective interventional case report includes three eyes of two patients with choroidal metastasis from breast cancer. Both patien...
PURPOSE To report on outcomes after proton beam radiotherapy of choroidal melanoma using a 62-MeV cyclotron in patients considered unsuitable for other forms of conservative therapy. METHODS AND MATERIALS A total of 349 patients with choroidal melanoma referred to the Liverpool Ocular Oncology Centre underwent proton beam radiotherapy at Clatterbridge Centre for Oncology (CCO) between January...
Plaque brachytherapy has been a mainstay of treatment for choroidal melanoma to achieve intraocular tumor control. The most common radioisotopes used for treating smaller sized tumors are Iodine-125 in North America and Ruthenium-106 in Europe. Proton beam radiotherapy is available at a few centers and may also be used to achieve local tumor control. Both plaque and proton beam therapy are know...
CLINICAL CASE A 45-year-old male referred with a scotoma in the left eye of 2 months' evolution. A peripapillary tumor was found, with a basal diameter of 7 mm and thickness 3.4 mm. It was diagnosed as a circumscribed choroidal hemangioma. It was decided to treat the patient using photodynamic therapy. After 4 sessions and 17 months follow-up, the patient remained asymptomatic and visual acuity...
CLINICAL CASE No intraocular biopsy technique is free of risk and all have the possibility of giving false negatives due to the difficulty in obtaining a sufficient sample. A modified chorioretinal biopsy was performed on a patient with suspected choroidal melanoma after negative biopsy with 25G vitrectomy. In addition to removing a solid fragment of tumor material using bimanual surgery, mater...
Two patients evaluated for metamorphopsia were noted to have inferotemporal retinal pigment epithelium elevations formed by a yellowish lesion. Fluorescein angiography showed granular hyperfluorescence with late leakage, which was interpreted as an occult choroidal neovascularization. One patient underwent photodynamic therapy. In both patients, neither vitreous cells nor neurologic manifestati...
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