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요추에 발생한 Ewing's Sarcoma 1례 : 증례보고 Case Report
하영일,조해동,유영락,김남규,정환영,김춘원 대한신경외과학회 1981 Journal of Korean neurosurgical society Vol.10 No.2
Ewing's sarcoma is an uncommon malignant neoplasm of the bone, which is rather infrequent in childhood and represented only 2% of all neoplasm under the age of IS years. Clinical picture was that of progressive paraplegia associated with localized pain. The authors have experienced a case of primary Ewing's sarcoma of the first and second lumbar vertebrae in a 26-year-old male.
하영일,조해동,유영락,김남규,정환영 대한신경외과학회 1981 Journal of Korean neurosurgical society Vol.10 No.2
The purpose of this study on the surgical results for lumbar intervertebral disc herniation is to analyze the unique feature of the series which seems to be sufficient to represent Korean patients suffering from these diseases. A total of 812 lumbar discectomies had been performed from May, 1972 to December, 1978 at Hanyang University Hospital. The most outstanding unique feature was the level of the lesion. The L₄-L_(5), interspace was affected in 87.6%. while the most of the other series showed almost same incidence between L₄-L_(5), and L_(5)-S₁, interspaces. The results of this analysis are as follows: 1) The incidence ratio of male to female was 1.3: 1. 2) Most were in the 4th and 5th decade (53.5%). The duration was over one year in 64.6% of cases. 3) Traumatic origin was 37.8% of cases. Post-delivery, convulsive and unknown etiology were 2.2%, 0.7% and 59.3% of cases, respectively. 4) The level of the lesion was predilected at L₄-L_(5) interspace with the incidence of 87.6%, while L_(5)-S₁, interspace was affected in 25.4% of cases. Single lesions were 70.8% and the multiple 29.2% of cases. 5) False positive findings of myelogram were 1.2% of cases. 6) Surgical results were gratifying in 92.3% of cases. 7) The incidence of postoperative complications was 3.3% of cases, which were mainly stitch abscesses. 8) The 7 out of 812 cases were associated with spinal tumors.
두개강내 세균성 동맥류 : 증례 보고 Case Report
하영일,임홍재,김충현 대한신경외과학회 1991 Journal of Korean neurosurgical society Vol.20 No.9
This case of a ruptured, infected intracranial aneurysm is reported. A 19-year-old female patient was transferred to our hospital due to large intracerebral hematoma in the right posterior parietal area with the marked mass effect. Cerebral angiograms demonstrated, beyond the vascular stretching due to the hematoma, a smal vascular mass situated on the distal parietal branch of the right middle cerebral artery. She was operated on the 3rd day after admission; a small vascular mass, almost thrombosed, was discovered and totally removed after evacuation of the hematoma. Cardiac manifestation including the echocardiogram was negative. Cultures of the blood, hamatoma evacuated during craniotomy and intra-aneurysmal thrombi were also negative at all. Postoperative angiograms revealed no newly developed vascular mass and follow-up course for 10 months has been uneventful. Different treatments of intracranial myctic aneurysms are finally reviewed and a therapeutic approach is discussed.
소아 터어키鞍 周圍部에 발생한 연골상 脊索腫 : 증례 보고 Case Report
하영일,임흥재,김충현 대한신경외과학회 1991 Journal of Korean neurosurgical society Vol.20 No.5
An unusual case of suprasellar chondroid chordoma in childhood is reported. The patient a 14-year old boy, presented with total blindness of the left eye which was initially diagnosed as primary optic nerve atrophy. The frontotemporal craniotomy was performed and irradiated postoperatively. Intracranial chordomas in children are rare especially in chondroid varient of the classical chordoma. We reviewed the literatures and stressed this rare case in aspects of the treatment, prognosis and pathological characteristics.
하영일,임홍재 대한신경외과학회 1990 Journal of Korean neurosurgical society Vol.19 No.4
The authors report a case in which a cerebral arteriovenous malformation (AVM'S) disappeared completely and spontaneously within 7 years without bleeding episodes or surgical intervention. During the interval, he has been completely asymptomatic and had received no treatment except anticonvulsant medication for 6 months. There was no more epilepsy and mild muscular atrophy in the right lower extremity. A similar case has previously been described and is discussed briefly along with other cases of complete AVM'S regression.
하영일,임홍재 대한신경외과학회 1990 Journal of Korean neurosurgical society Vol.19 No.7
The authers report a case of intracerebral extraventricular cyst of possible neuroectodermal origin, presenting as a right frontotemporoparietal mass lesion which has no communication with the subaracnhnoid space or ventricular system. A 4 months old male patient recovered rapidly after partial removal of cystic wall, cystoventriculostomy and cystoperitoneal shunt. The pathogenesis and principles of diagnosis and surgical management of this rare lesion is discussed
하영일,송관영,김충현,임홍재 대한신경외과학회 1992 Journal of Korean neurosurgical society Vol.21 No.11
A rare case of spinal cord compression caused by a solitary myeloma situated at the level of 12th thoracic vertebra is discussed Plasma cell neoplasms have been classified as multiple myeloma, solitary plasmacytoma and extramedullary plasmacytoma arising in the soft tissue than the bone. The solitary myeloma should be included in the differential diagnosis of various type of bone tumor and considered as something completely seperated from multiple myeloma even though it developes a disseminated disease with all the characteristics of multiple myeloma in a few years. The authors report this 54-year old male patient suffered from chronic back pain due to solitary myeloma of the thoracic spine and operated on transpedicular fixation to prevent more severe neurologic deficits following radiotherapy. Special emphasis on clinical characteristics between solitary and multiple myeloma, diagnosis, management and prognosis of plasma cell disorder are reviewed with literatures.