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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Objective: A case in which carotid artery stenting (CAS) was performed via the femoral artery for stenosis of the left common carotid artery ostium is reported.Case Presentation: The patient was a 70-year-old man with multiple infarction of the right cerebral hemisphere that presented with a transient decrease in grip strength and numbness of the left hand. Occlusion of the right internal carotid artery and stenosis of the left common carotid artery ostium were demonstrated. CAS was performed using the buddy wire technique and a distal filter protection device for stenosis of the left common carotid artery ostium. The postoperative course was uneventful, and the patient was discharged to home 8 days after surgery. Conclusion:In CAS for stenotic lesions of the common carotid artery ostium, the concomitant use of the buddy wire technique is useful.

Central neurocytomas are typically benign tumors that have high local control rates after gross total resection. Radiotherapy for residual or recurrent central neurocytomas is controversial. We report a 30-year-old male with a central neurocytoma in the lateral ventricle. The tumor was subtotally resected through a transcallosal approach, and subsequently treated with gamma knife radiosurgery. The tumor had shrunken markedly by 2 months after radiosurgery and remained unchanged during the one year follow-up period. Gamma knife radiosurgery may be an option for effective treatment of patients with residual or recurrent central neurocytomas.

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