Adult wilms' tumor metastatic to the choroid of the eye

BACKGROUND: Ocular manifestations of Wilms' tumor are rare, particularly in adults. We present the first reported case of a choroidal metastasis resulting from Wilms' tumor. DESIGN: Case report. PARTICIPANT: A 37-year-old white male with an adult-onset biopsy-proven Wilms' tumor with multiorgan metastatic disease. RESULTS: We report a unique case of uveal metastasis presumed from a Wilms' tumor. The patient's history included a primary Wilms' tumor with known disseminated metastasis, orbital pain, metamorphopsia, and decreased vision. Ophthalmoscopy revealed a unifocal choroidal tumor in the inferotemporal quadrant of the right eye. Ultrasonographic measurements of the tumor were 4.9 mm in apical height and 15 x 13 mm in basal diameter. Unusual ultrasound findings included echodense stromal opacities and retrobulbar edema. Fluorescein angiography revealed double circulation and late intratumoral fluorescence. CONCLUSIONS: This is the first reported case of a choroidal metastasis by a Wilms' tumor.