Choroidal Metastasis as the Initial Presentation of Rectal Adenocarcinoma

Choroidal metastasis from rectal cancer is a rare occurrence with limited literature on appropriate evidence-based treatment options. We describe the case of 44-year-old man who presented with left-sided painful vision loss who was found to have left choroidal and multiple lung metastasis from an unknown primary which was later found to be rectal adenocarcinoma.

Ocular metastasis from colorectal cancer is rare with choroid being the most common site of involvement if it occurs.Ocular metastasis usually occurs as a part of generalized metastasis to multiple organ systems.Treatment options include systemic chemotherapy, radiation, bevacizumab and enucleation.