Cystoid macular edema with equatorial choroidal melanoma.

Symptoms and signs related to cystoid macular edema were the initial findings in a patient with a choroidal malignant melanoma located in the equatorial region of the globe. Histopathologic findings included retinal perivasculitis and cystoid macular edema. There was no evidence of a serous detachment of the macula. Patients with cystoid macular edema should be carefully examined for tumors or other pathological findings in the peripheral fundus.