Incomplete Miller-Fisher Syndrome with Advanced Stage Burkitt Lymphoma.

BACKGROUND Lymphoma-associated incomplete Miller-Fisher syndrome is very rare. CASE CHARACTERISTICS An 11-year-old boy who initially presented with headache, left ptosis, diplopia and weakness. Neurologic examination indicated left sided ptosis with ophthalmoplegia. OBSERVATIONS Cerebral imaging and cerebrospinal fluid examinations were normal. Magnetic resonance imaging of the abdomen showed a mass lesion in the ileal loops. A bone marrow biopsy showed infiltration by Burkitt's lymphoma. MESSAGE Burkitt lymphoma may present with incomplete Miller Fisher syndrome.