We describe a 40-year-old male who developed an isolated recurrence of granulocytic sarcoma (GS) of the brain 2 years following successful treatment of acute myeloblastic leukemia (AML; M2). Computed tomography (CT) scans and magnetic resonance (MR) images demonstrated a homogeneously enhanced tumor mass in the left temporal lobe and massive peritumoral edema. There was no evidence of relapse in the bone marrow. The patient underwent an emergency surgical resection of the tumor. Five courses of injection with cytarabine and prednisolone through an Ommaya reservoir and whole brain irradiation (total 40 Gy) were performed. Furthermore, prophylactic systemic chemotherapy with cytarabine and etoposide was added. He has been in complete remission for 21 months. Our results, together with other reported cases, indicate that a favorable outcome could be obtained by intensive and combined treatment for an isolated recurrence of GS of the brain if the bone marrow remained in complete remission.
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