Course: An Amelanotic Choroidal Lesion in a 68-Year-Old Man
CME Credits: 1.00
Released: 2022-12-15
A 68-year-old man with a history of keratoconus was referred for evaluation of a choroidal lesion in his left eye. He reported intermittent dull pain in his left eye for 1 month that improved with acetaminophen. His family history was significant for non-Hodgkin lymphoma (mother) and leukemia (mother and maternal grandfather). On examination, his best-corrected visual acuity was 20/25 OD and 20/200 OS, limited by keratoconus. Extraocular movements were full, there was no relative afferent pupillary defect, and intraocular pressures were 13 mm Hg OD and 11 mm Hg OS. There was no proptosis. Anterior segment examination demonstrated keratoconus with corneal scarring in both eyes and Descemet folds in the left eye. Both eyes had mixed cataract. There were no signs of anterior segment or vitreous inflammation. Ophthalmoscopic examination revealed an amelanotic area of choroidal thickening (confirmed by optical coherence tomography) overhanging the inferonasal margin of the optic disc with associated subretinal fluid and scattered areas of hyperpigmentation (A). There was an additional, subtle amelanotic elevated lesion under the fovea. Fundus autofluorescence demonstrated hyperautofluorescence in a leopard-spotting pattern (B). Indocyanine green angiography revealed hypocyanescent lesions inferonasal to the disc and at the fovea.
Educational Objective
Based on this clinical scenario and the accompanying image, understand how to arrive at a correct diagnosis.
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