An unusual presentation of retinal metastasis

Poster Details

First Author: R.Martens CANADA

Co Author(s):    V. Pandya   H. Aziz   F. Forooghian   A. Kirker   A. Merkur                 

Abstract Details


To report a case of retinal metastasis in a patient with sigmoid adenocarcinoma.


Eye Care Centre, Vancouver, British Columbia, Canada.


Case report


A 68-year-old Caucasian man with a history of sigmoid adenocarcinoma was referred to our institution with a one-year history of painless vision loss in their left eye. He was found to have multiple placoid infiltrative retinal lesions in both eyes. This was initially treated as an infectious presumed viral retinitis. An anterior chamber tap was performed. He underwent an intravitreal injection of Foscarnet and was placed on systemic antivirals. Viral polymerase chain reaction (PCR) was negative and a diagnostic pars plana vitrectomy with retinal biopsy was performed. The histopathology result revealed metastatic adenocarcinoma. Wide-field photography with the Optos system accurately captures the detail and extent of the retinal metastasis. Furthermore, wide-field fluorescein angiography depicts the areas of hyperfluorescence without vasculitis and spectral domain OCT shows the depth and extent of retinal thickening, which aid diagnostic acumen.


Retinal metastases are rare and often initially misdiagnosed as infectious or inflammatory retinitis. We report a very rare case of retinal metastasis from sigmoid adenocarcinoma.

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