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A case of a 63-year-old woman with subfrontal schwannoma of the left side is presented. The patient had a two-month history of recent memory disturbance and unstable gait. Computed tomography represented an isodense mass lesion with large and small cystic components in the anterior cranial fossa, enhancing homogeneously after intravenous injection of(More)
The case of a 14-year-old boy presenting with hypergammaglobulinemia (immunoglobulin (Ig)G and IgA) and a cerebellopontine angle tumor is reported. The tumor was histologically confirmed as meningioma infiltrated with plasma cells, lymphocytes, and histiocytes. Immunohistochemical studies showed that the infiltrating plasma cells were stained by antibodies(More)
It is very rare for neurosurgeons to encounter cases of spinal cord injury caused by a broken acupuncture needle. A 45-year-old man was referred to our clinic because of urinary retention about two weeks after acupuncture therapy (a needle was broken during treatment). The patient showed no motor weakness, or sensory disturbance. The needle was seen(More)
Clinical analyses of 5 cases of cavernomas in the middle fossa were made to define specific clinical and radiological manifestations and thus improve the pre-operative diagnosis and treatment. From diagnostic and operative points of view, cavernomas in the middle fossa must be considered separately from those in other localities. Intracerebral cavernomas(More)
SUMMARY One of the major complications during or after percutaneous transluminal angioplasty (PTA) is distal embolism. We performed intravascular ultrasound (IVUS) to assess the morphological characteristics of atheromatous plaques which caused stenosis of arteries. In 7 cases of ICA stenosis, IVUS demonstrated hyperechoic plaques which were considered to(More)
The patient, a 39-year-old man, underwent initial surgery for total removal of a left C-P angle tumor histologically diagnosed as epidermoid carcinoma. Postoperative irradiation therapy was administered over the whole brain and spinal cord, 50 Gy and 20 Gy respectively. The patient was then released without symptoms. 15 months later, he was readmitted for(More)
For the treatment of unclippable giant carotid artery aneurysms, proximal occlusion of the carotid artery is still an accepted treatment by surgical ligation, Selverstone clamp, or detachable balloon. However, proximal artery occlusion should be avoided as far as possible. Use of detachable balloons for proximal artery occlusion in the treatment of giant(More)
The effects of prostaglandin D2 (PGD2) on the growth of mouse malignant glioma cells were studied in vitro and in vivo. The in vitro studies consisted of various concentrations of prostaglandins (PG's) being added to cultures of mouse glioma cells. At concentrations above 2.5 micrograms/ml, PGD2 strongly inhibited the proliferation of glioma cells, whereas(More)