Ocular findings are rarely the initial symptom of leukemia, although up to 90% of all leukemia patients have fundus changes during the course of the disease. Herein we report a relapsing acute lymphoblastic leukemia patient with the sole presentation of sudden visual loss and exudative retinal detachment. An 8-year-old boy with acute lymphoblastic leukemia developed sudden visual loss during his first remission period. Bullous retinal detachment with total afferent pupillary defect was observed. Orbital magnetic resonance imaging revealed an intraocular mass lesion; simultaneously obtained bone marrow and cerebrospinal fluid samples showed no evidence of leukemic cells. Following local irradiation, and systemic and intrathecal chemotherapy the mass disappeared. Local irradiation, and systemic and intrathecal chemotherapy effectively controlled the isolated ocular relapse of acute lymphoblastic leukemia and eliminated the need for enucleation.
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