Yohtaro Sakakibara

Learn More
A 59-year-old man presented with a 2-month history of numbness in the lower left side of the face and upper left extremity. Axial T(1)-weighted magnetic resonance imaging showed a wedge-shaped mass measuring 3 x 2.5 cm in the right frontoparietal high convexity area that was heterogeneously enhanced after administration of(More)
Intracerebral metastasis in osteosarcoma is extremely rare. A 14-year-old girl who had previously been operated upon for osteosarcoma of the femur presented with seizures and left hemiparesis. A right parietal lesion with calcification and brain oedema was found. After resection of the mass, pathology revealed an osteosarcoma metastasis.
Our patient presented with a mass lesion mimicking a meningioma. The mass was resected, but pathological examination confirmed a foreign body granuloma, which was caused by silk fibres used as tenting sutures 8 years previously. Herein, we describe the case and review the neurosurgical literature on intracranial foreign body granulomas.
A case of brain metastasis from peritoneal serous surface papillary carcinoma (SSPC) was reported. This 68-year-old woman was admitted to our department because of decreased consciousness level for the last few days. Her medical past history revealed breast cancer and SSPC of the peritoneum at the age of 64. On admission she was comatose and irritable.(More)
OBJECTIVE A rare case of ruptured kissing aneurysms on the right internal carotid-posterior communicating artery (ICPCA) and -anterior choroidal artery (ICAchA) is reported. CASE A 47-year-old female was transferred to our hospital because of subarachnoid hemorrhage (SAH). Cerebral angiography revealed two aneurysms on the right ICPCA and ICAchA. Right(More)
OBJECTIVE We report a case of a patient with a prolactin (PRL) producing ectopic pituitary adenoma presenting a unilateral exophthalmos. CASE This 70-year-old woman presented an ophthalmologist with progressive left-sided exophthalmos over the previous 2 months. Bone window CT scan revealed extensive bony destructions of the skull base including the(More)
Here, we report a case of dural cavernous angioma. A 54-year-old man presented with headache in his right frontal area for the previous few weeks. Computed tomography (CT) and magnetic resonance imaging revealed a well-demarcated extramedullary mass, 3 x 2.5cm in size, within the subdural space at the right frontal region. The mass was not enhanced on a(More)