Abstract

We retrospectively reviewed the cytology and immunohistology of vitreous specimens from nine patients with intraocular lymphoma (ocular reticulum cell sarcoma). A single vitreous biopsy specimen was not always adequate to establish the diagnosis in this condition. Cytological evaluation was more accurate than lymphocyte surface marker analysis to differentiate lymphoma from uveitis. The immunological features of these tumours indicate a heterogeneous group of intraocular lymphomas.