Cytomegalovirus retinitis: an unusual presentation as vitreous hemorrhage.

PURPOSE: The purpose of this report is to describe an unusual presentation of vitreous hemorrhage (VH) in a patient with an immunosuppressive condition. METHODS: Retrospective case report. RESULTS: A 72-year-old woman with known T-cell prolymphocytic leukemia treated with a course of alemtuzumab presented to our department with a VH in her left eye after a fall. An initial diagnosis of hemorrhagic posterior vitreous detachment was made. However, as the VH was resolving, she was found to have underlying vitritis, occlusive vasculitis, and a pale optic nerve head. Vitreous biopsy confirmed cytomegalovirus retinitis. Despite treatment with intravenous foscarnet and oral valganciclovir, her vision continued to remain poor because of the severe damage from the retinal vasculitis and residual VH. CONCLUSION: As indications for immunosuppression increase, the incidence of cytomegalovirus retinitis in non-HIV-immunosuppressed patients is expected to rise. Therefore, in this subgroup of patients, we should be aware of any underlying retinitis especially in cases with an unusual presentation of VH.