Fundus Angiography for Diagnosis of Choroidal Tumors.
Abstract
Information from both ophthalmoscopic examination and investigation are crucial in giving a diagnosis of choroidal tumors. Fundus angiography is a novel investigative tool that yields parti- cular characteristics in different kinds of tumors, especially in an atypical presenting circumstance. This review organizes the findings of fluorescein angiography (FA), indocyanine green angiography (ICGA), and fundus autofluorescence (FAF) in choroidal nevus, choroidal melanoma, choroidal hemangioma, and choroidal metastasis. Whereas the nevus demonstrates a hypofluorescence throughout the angiographic phases, choroidal melanoma shows meticulous hyper-fluorescent intra-tumoral vessels. Choroidal hemangioma has a specific early dye filling and wash-out phenomenon on an angiogram. Although the choroidal metastasis reveals a non-specific pattern, the abnormal findings usually appear multifocally. Fundus angiography is not only useful in differentiating amongst these choroidal tumors but also helpful in following up the growth or treatment result of some tumors.
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