The authors analysed retrospectively, 69 cases of chronic subdural hematoma admitted to the Department of Neurological Surgery, from January 1992 to February 1995. All hematomas were operated on by one burr hole trephination and continuous closed-system cather drainage system. The results were as follows: 1) Male was more frequently involved than female with ratio of 5.3:1 and the incidence was prredominent in the patients whose ages were over 50. 2) History of head trauma was found in 52 cases(75.4%), among which habitual alcoholism was found in 6 cases(8.7%). 3) The major symptoms and signs at admission were headache(55.1%), hemiparesis(44.9%), and mental changes(30.4%). 4) On the brain CT scan, hematoma showed low, iso, mixed, and high in density, and the shapes of hematoma were crescenteric, biconvex, planoconvex, and concave in order of frequency. 5) We have found a significant relationship between the neurological grade at admission and the prognosis, and noted full recovery in 45 cases(65.2%) and no d eath as a result of 1-burr hole trephination.
Alcoholism ; Brain ; Craniocerebral Trauma ; Drainage ; Female ; Hematoma ; Hematoma, Subdural, Chronic* ; Humans ; Incidence ; Male ; Prognosis ; Retrospective Studies ; Tomography, X-Ray Computed ; Trephining

Intradural spinal lipomas are rare, primary genign tumor of the spinal canal. A case of intradural spinal lipoma with intramedullary extension is presented. Clinical feature was slowly progressing paraparesis. A subtotal excision was performed, and pathological studies confirmed the diagnosis.
Diagnosis ; Lipoma* ; Paraparesis ; Spinal Canal ; Spinal Cord Compression ; Spinal Cord Neoplasms

Extraosseous extradural tuberculosis of the spine is rare entity. A 21-year-old man with low back pain, left-sided sciatica & motor weakness was admitted. Simple X-ray were normal. At operation, extradural, extraosseous granuation tissue were removed, which proved upon histologic examination to be tuberculous granulomas. The authors report a rare case of extraosseous tuberculoma in the posterior extradural space of whole lumbar region with review of literatures.
Granuloma ; Humans ; Low Back Pain ; Lumbosacral Region ; Sciatica ; Spine ; Tuberculoma* ; Tuberculosis ; Young Adult

A case of a acute expanding venous extradural hematoma was treated. Initial CT scan was favorable, but delayed bleeding & its expansion was developed. The bleeding points were left transverse sinus and superior petrosal sinus. Serial neurologic examination & serial CT scan in patients with head injuries are recommended.
Brain* ; Craniocerebral Trauma ; Hematoma* ; Hemorrhage ; Humans ; Neurologic Examination ; Tomography, X-Ray Computed*

Delayed traumatic extradural hematoma is a new pathological dimension. Thirteen patients with delayed traumatic extradural hematoma were seen 70 treated cases of extradural hematomas for a frequency of 18.6%. The hematomas were insignificant or not present on the initial CT scanning. All patients had a skull fracture at the site of delayed extradural hematoma formation. Ten hematomas were surgically evacuated and three were reabsorbed spontaneously. Repeated CT scanning was performed if the patient has any new focal neurological deficits or clinical status was not improved despite of minimal extradural hematoma after head injury. Delayed extradural hematoma were classified into two groups based on the presence of hematoma in initial CT scan : delayed bleeding type(newly formed xtradural hematoma/4 cases : 5.7%) & delayed expansion type(enlargement of initial thin hematoma/9 cases : 12.6%).
Craniocerebral Trauma ; Hematoma* ; Hemorrhage* ; Humans ; Skull Fractures ; Tomography, X-Ray Computed

During 3-year period, fourteen patients with air bubble in acute extradural hematomas were seen among 84 consecutively cases of extradural hematomas for a frequency of 16.7%. Extradural air were classified into 3 groups based on the location of air bubble ;frontal type(4 cases), temporal type(8 cases) & occipital type(2 cases). A skull fracture was seen in all cases & the air entrance was considered to frontobasal or laterobasal skull fractere. In patients with 4 cases of CSF leak & multiple air bubbles, delayed expansion of extradural hematoma was seen. The clinical significance of air bubble in acute extradural hematoma is disscussed.
Craniocerebral Trauma ; Hematoma* ; Humans ; Pneumocephalus ; Skull ; Skull Fractures

A case of traumatic acute bilateral subdural hematoma with different times is expierenced. The contralateral shbural hematoma was developed during the evacuation of an acute subdural hematoma. The reduction of intracranial pressure after removal of subdural hematoma was postulated to be contributing factor to formation of the contralateral subdural hematoma.
Craniocerebral Trauma ; Hematoma ; Hematoma, Subdural* ; Hematoma, Subdural, Acute* ; Intracranial Pressure

Albendazole is a new drug for the treatment of cerebral cysticercosis. We have recently experience a case that had shown poor therapeutic response to praziquantel. The patient have multiple parenchymal cysts. She was treated with 15mg/kg/day of albendazole for 1 month to confirm healing of the intracranial lesion by the follow up brain CT scan and CSF-ELISA associated with marked clinical improvement.
Albendazole* ; Brain ; Cysticercosis ; Drug Therapy ; Follow-Up Studies ; Humans ; Neurocysticercosis* ; Praziquantel ; Tomography, X-Ray Computed

Lesions with controlled monopolar coagulation were generated in the cerebral cortex of 20 healthy rabbits. With 28 watts monopolar coagulation, average diameter of histologically changed area around lesion was aout 7.5mm with using Evans blue dye technique. At same time, EEGs in three points, which were 5mm, 10mm & 15mm distant from the coagulated lesion site, were cheched before and just after coagulation. In results, the frequency of EEG was slightly decreased after coagulation, but there were no relation with distance from lesion. But the amplitudes of EEG were decreased as 51.2 micro v(61.2%), 42.9 micro v(3.9) and 34.0 micro v(25.3%) after coagulation, which depended on the distance from site of coagulation. That means electrophysiologically changed area after coaguation was far beyond the histologically changed area.
Brain* ; Cerebral Cortex ; Electroencephalography ; Evans Blue ; Rabbits

Lesions with controlled monopolar coagulation were generated in the cerebral cortex of 20 healthy rabbits. With 28 watts monopolar coagulation, average diameter of histologically changed area around lesion was aout 7.5mm with using Evans blue dye technique. At same time, EEGs in three points, which were 5mm, 10mm & 15mm distant from the coagulated lesion site, were cheched before and just after coagulation. In results, the frequency of EEG was slightly decreased after coagulation, but there were no relation with distance from lesion. But the amplitudes of EEG were decreased as 51.2 micro v(61.2%), 42.9 micro v(3.9) and 34.0 micro v(25.3%) after coagulation, which depended on the distance from site of coagulation. That means electrophysiologically changed area after coaguation was far beyond the histologically changed area.
Brain* ; Cerebral Cortex ; Electroencephalography ; Evans Blue ; Rabbits