巻号一覧
31 巻, 4 号
選択された号の論文の10件中1～10を表示しています
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Shinji IJICHI, Naomi IJICHI, Kiyoshige NIINA, Fumishige NAKAMURA, Mits ...1991 年 31 巻 4 号 p. 189-193
発行日: 1991年
公開日: 2006/09/05
ジャーナル フリーThe relationships between the angiographic morphology of the posterior communicating artery (PComA) and the basilar artery (BA) and saccular aneurysms at the internal carotid artery (ICA)-PComA junction were evaluated in 23 patients with ICA-PComA aneurysm and 46 controls. No significant differences were found in the height of the basilar top, the dislocation and inner diameter of the BA, and the distance between the basilar top and the ICA-PComA junction. However, the angle between the PComA and C2 portion of the ICA was larger and the PComA straighter in ICA-PComA aneurysm patients. Tension in the PComA and mechanical damage to the divergent angle of the PComA are probably important factors in the development of ICA-PComA aneurysms.抄録全体を表示PDF形式でダウンロード (283K) -
—A Study of 32 Patients—Katsuzo KIYA, Tohru UOZUMI, Kaoru KURISU, Takuhiro HOTTA, Hidenori OGA ...1991 年 31 巻 4 号 p. 194-198
発行日: 1991年
公開日: 2006/09/05
ジャーナル フリーThe outcomes in 32 cases of histologically diagnosed primary central nervous system lymphoma were investigated. The 1-, 2-, and 5-year survival rates were 54, 36, and 8%, respectively. Good outcome was indicated by extensive surgical removal with 50-Gy irradiation and lower ages. 61% of patients receiving radiation therapy suffered recurrence within 1 year. The incidence of multiple lesions increased at recurrence. These lesions were almost all remote from the initial site in the brain, occurring more frequently in the central part of the supratentorial regions near the ventricle. Multiple lesions recurred more rapidly than single lesions. Longer survival times were indicated by a long tumor-free period after initial treatment. Extensive surgical removal results in long survival times for patients with a localized single tumor in the early stage. Radiochemotherapy should be given as part of the initial treatment.抄録全体を表示PDF形式でダウンロード (323K) -
—Report of Two Cases—Shigeru YAMAMOTO, Ichiro SUNADA, Yoshimi MATSUOKA, Akira HAKUBA, Shuro ...1991 年 31 巻 4 号 p. 199-202
発行日: 1991年
公開日: 2006/09/05
ジャーナル フリーThe authors present two patients with subarachnoid hemorrhage caused by ruptured intracranial saccular aneurysms of the persistent primitive hypoglossal artery. A standard unilateral suboccipital approach in one patient resulted in incomplete neck clipping since the operative field was restricted by a protruding jugular tubercle. Successful aneurysmal neck clipping was achieved in the second patient via a unilateral-transcondylar-suboccipital approach with resection of the jugular tubercle and rim of the foramen magnum.抄録全体を表示PDF形式でダウンロード (281K) -
—Case Report—Hidenori OHTA, Toshihiko TANAZAWA, Koji OSUKA, Yatsuo ITO, Toshiaki FU ...1991 年 31 巻 4 号 p. 203-205
発行日: 1991年
公開日: 2006/09/05
ジャーナル フリーA rare case of true aneurysms of the middle meningeal artery (MMA) associated with cavernous hemangioma in a 47-year-old male is presented. Angiography showed aneurysmal dilatation of the MMA, which was a tumor feeder. Histological examination confirmed the true aneurysmal character of the dilatation. The aneurysms were considered to result from increased hemodynamic stress and medial defects in the MMA.抄録全体を表示PDF形式でダウンロード (272K) -
—Case Report—Hideaki HARA, Hisashi NAGASHIMA, George KOIKE, Keiichi SAKAI, Shigeaki ...1991 年 31 巻 4 号 p. 206-209
発行日: 1991年
公開日: 2006/09/05
ジャーナル フリーThe authors report a case of subarachnoid hemorrhage due to spontaneous dissection of the intracranial segment of the left vertebral artery. Serial angiography demonstrated spontaneous entrapment of the lesion 4 months after ictus.抄録全体を表示PDF形式でダウンロード (317K) -
—Case Report—Youichi ITOYAMA, Hiroshi SETO, Shinji NAGAHIRO, Jun-ichi KURATSU, Shoz ...1991 年 31 巻 4 号 p. 210-213
発行日: 1991年
公開日: 2006/09/05
ジャーナル フリーA rare case of intracranial hemangiopericytoma associated with a large cyst was treated by gross total removal and local irradiation. The tumor has not recurred for 16 months, although the effectiveness of radiation therapy for hemangiopericytoma is unclear. Histological examination of the tumor specimen showed aggregation of the microcystic components, possibly contributing to the cyst formation. Hemangiopericytoma should not be classified as meningioma because of the different neoplastic and cytological properties. Complete surgical removal is essential for this tumor because of its malignancy.抄録全体を表示PDF形式でダウンロード (415K) -
—Report of Two Cases—En-Chow TAN, Shigeo WAKABAYASHI, Hideki KANAI, Hajime NAGAI1991 年 31 巻 4 号 p. 214-218
発行日: 1991年
公開日: 2006/09/05
ジャーナル フリーTwo nonimmunosuppressed patients with primary intracranial malignant lymphoma demonstrated ring-enhanced lesion on postcontrast CT scans. One patient underwent total removal of the tumor and the other patient biopsy, both followed by whole brain irradiation. Histological examination revealed the tumors contained diffuse large cells and necrosis in the central region. The possible mechanisms of ring enhancement may represent central necrosis of the rapidly growing tumor, but is probably not related to the prognosis.抄録全体を表示PDF形式でダウンロード (448K) -
—Case Report—Seiji MATSUURA, Takuji TAKAGI, En-Chow TAN, Shiro MIZUNO, Nobuyuki IMA ...1991 年 31 巻 4 号 p. 219-222
発行日: 1991年
公開日: 2006/09/05
ジャーナル フリーThe authors present a rare case of malignant fibrous histiocytoma originating in the cranial bone. A 72-year-old male was admitted with a diffuse painless swelling in the left occipital region but no neurological abnormality. Plain skull x-ray films and computed tomographic scans showed a large tumor in the left temporo-occipital bone. The tumor invading subcutaneous tissue was totally excised and histologically diagnosed as malignant fibrous histiocytoma. Postoperatively, 40-Gy irradiation was given to the left temporo-occipital region. Several months later, however, the tumor recurred in the posterior fossa. Neuroradiological examination showed tumor extension into the occipital bone and muscle and the subdural space of the posterior fossa. A second operation extirpated all tumors except in the cerebellum. He died of pneumonia on the 14th postoperative day. Autopsy revealed malignant fibrous histiocytoma invading into the bilateral cerebellar hemispheres. Radiation and chemotherapy should be given as soon as possible following extensive surgery for malignant fibrous histiocytoma of the cranial bone.抄録全体を表示PDF形式でダウンロード (321K) -
—Case Report—Masaaki YOSHIHARA, Atsushi ISHIZAWA, Kiyoshi SATO, Hirokazu TAMAKI1991 年 31 巻 4 号 p. 223-225
発行日: 1991年
公開日: 2006/09/05
ジャーナル フリーA 3-month-old girl presented with a rare occurrence of bilateral microphthalmos associated with orbital cysts. She underwent subtotal removal of the right orbital cyst. Histological examination was compatible with microphthalmos with orbital cyst. Although microphthalmos associated with orbital cyst is rarely encountered, it must be considered in the differential diagnosis of orbital cystic lesions.抄録全体を表示PDF形式でダウンロード (319K) -
—Report of Two Cases—Toshisuke SAKAKI, Hiroyuki NAKASE, Tetsuya MORIMOTO, Toru HOSHIDA, Shi ...1991 年 31 巻 4 号 p. 226-232
発行日: 1991年
公開日: 2006/09/05
ジャーナル フリーSeizures in patients with Lennox-Gastaut syndrome are very resistant to drug therapy. Division of the anterior half of the corpus callosum was performed in two patients with Lennox-Gastaut syndrome incapacitated by frequent atonic seizures leading to sudden falls. Postoperatively, the atonic seizures were completely eliminated and their mental reactivities remarkably improved. It is clear that they have benefited from a lower frequency of seizures and reduced dosages of anticonvulsant medication, which outweigh the acquired disabilities.抄録全体を表示PDF形式でダウンロード (564K)
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