Acute myeloid leukemia presenting as bilateral proptosis from diffuse extraocular muscle infiltration.

ABSTRACT

PURPOSE: To report a case of acute myeloid leukemia with bilateral proptosis as the sole presenting sign. DESIGN: Observational case report. METHODS: A patient with bilateral proptosis was seen in consultation by pediatric ophthalmology. RESULTS: Complete blood count, computerized tomography, and bone marrow biopsy confirmed the diagnosis of acute myeloid leukemia, with the proptosis due to diffuse infiltration of all extraocular muscles. CONCLUSION: In a child with the sudden onset of proptosis without any other systemic findings, the diagnosis of acute leukemia must be considered.