A Case of Epidermoid Cyst with Intractable Trigeminal Neuralgia

The authors report a cases of the epidermoid cyst which manifested neuralgia on the 2nd and 3rd brances of the trigeminal nerve. The tumor was located in the cerebelloponitine angle, Lt. The cyst content and tumor capsule surrounding the trigeminal nerve were removed. After surgery, the chief complaint disappeared and other complications were absent. In the patient, the computed tomography scan demonstrated a hypodense tumor not enhanced by contrast material. With magnetic resonance imaging, the tumor showed a intermediate signal intensity between the brain and CSF on the T1-seighted image and an increased signal intensity relative to brain CSF on T2-weighted image. In the patient with trigeminal pain, we have to evaluate the causes of the pain radiologically.

A traumatic Giant Intracavernous Aneurysm Associated with Fatal Epistaxis: A Case Report

The autors reported a giant aneurysm in the cavernous portion of the internal carotid artery which occurred after head trauma. The patient was a 24 year old man who had suffered massive epistaxis with hyoptension about 25 days after a traffic accident. On plain skull X-ray, there was evidence of a basal skull fracture and a linear fracture at the right frontotemporal area. The computed tomographic scan revealed round, well enhanced density in the sellar region. During a reattack of massive epistaxis, emergency carotid angiography showed a right cavernous-internal carotid artery aneurysm with a small extravasation of dye into the sphenoid sinus.

Clinical and Pathological Study After Ligation of Common Carotid Artery in the Rat

This study examined the late pathological finding, clinical manifestation, and mortality in thirty-two rats with cerebral infarction induced by common carotied artery ligation. Thirty-two rats were divided into three group : Group A-a unilateral common carotid artery ligation group of twelve animals, Group B-a total common carotid artery ligation one side and partial common carotid artery ligation another side of eighteen animals, and Group C-bilateral common carotid arteries ligation of two animal. All animals surviving for 3 weeks were sacrified by intracardial injection of 2 M KCI 5cc and 2.5cc of 2% T.T.C. solution was infused into each common carotid arteries. The brain was rapidly rmoved and sectioned coronally and examined with the aid of a stereoscopic microscope for degree of T.T.C. stain and infarction. Brain was fixed and examined histologically. The results were as follows : 1) Mortality rate of each group : a unilateral common carotid artery ligation group was 16.67%, a total. Common carotid artery ligation on side and partial common carotid artery ligation another side group was 77.78%, and bilateral common arteries ligation group was 100%. 2) Clinical manifestation was showed as follows : hemiparesis, circling movement, abnormal seizure like activity, and ptosis. 3) Percent hemispheric volume infarction(%HVI) was 40%(mean value) in unilateral total common carotid artery ligation and 60% in total ligation one side and 46.25% in partial ligation another side. 4) The pathological change was signigicantly visible in bilateral ligation group.

A Clinical Study of Traumatic Intracerebral Hemorrhage

125 cases of traumatic intracerebral hematoma among 935 head injury in-patients were diagnosed with brain computed tomography in the department of neurosurgery, Chungnam National University hospital from Feb. 1986 to Feb. 1990. The authors attempted to analyse these cases clinically by reviews them with pertinent literature. The results were summarized as follows ; 1) The common age incidence was between fifth and sixth decade and almost all patients were male. 2) The most common cause of trauma was traffic accident. 3) The most common site of hematoma was the frontal lobe followed by temporal lobe. 4) There were 39 cases(31.2%) that had hematoma with contralateral skull fracture. 5) Subdural hematoma was the most common combined single lesion. 6) Almost all of the medically treated patients had a hematoma amount below 20cc. 7) The total mortality rate of the patients was 27.2%. 8) High GCS score at admission was good prognostic factor. However, pupil abnormality and rigidity at admission were poor prognostic factors.