Primary intraocular posttransplantation lymphoproliferative disorder.

We report a case of posttransplantation lymphoproliferative disorder manifesting as an isolated, unilateral iris tumor. A 2-year-old boy who had undergone liver transplantation for biliary atresia at age 4 months was seen with a 2-month history of an enlarging iris nodule. Histopathologic examination of the iris lesion demonstrated a mixed population of lymphoid cells. To our knowledge, this is the youngest patient with posttransplantation lymphoproliferative disorder isolated to the eye.