The patient was a 22 year old man who
was admitted for resection of Ewing's sarcoma(peripheral/primitive
neuroepithelial tumor - PNET). Vaguely described visual difficulty was noted
retrospectively to have begun approximately one month prior to admission. He
underwent thoracotomy for pulmonary metastasis, and was noted after recovery to
have trouble with concentration and increasing visual difficulty. On exam, he
was inattentive, confused and had a right homonomous hemianopia, a left
inferior quadrantanopia, right lower extremity hyperreflexia, and right
extensor plantar response.