Neurologia medico-chirurgica
-
Neurol. Med. Chir. (Tokyo) · Jun 1991
Case ReportsMagnetic resonance imaging of fat embolism syndrome--case report.
The authors describe a case of fat embolism syndrome in a 20-year-old male. Magnetic resonance (MR) imaging demonstrated multiple small cerebral infarcts suggesting this is the cause of the associated cerebral dysfunction. He underwent chemotherapy and hyperbaric oxygen therapy and recovered rapidly. MR imaging can provide prognostic indications in fat embolism syndrome.
-
Neurol. Med. Chir. (Tokyo) · Apr 1991
Angiographic morphology of the posterior communicating artery and basilar in patients with ICA-PComA aneurysm.
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.
-
Neurol. Med. Chir. (Tokyo) · Feb 1991
Case ReportsCavernous angioma in the fourth ventricular floor--case report.
A rare case of cavernous angioma located in the fourth ventricular floor occurred in a 44-year-old female complaining of occipital headache, vomiting, diplopia, and dysarthria. Computed tomographic scans demonstrated a high-density area in the fourth ventricle and slight hydrocephalus. ⋯ Postoperatively, ataxic gait, nausea, and vomiting disappeared gradually. MR imaging was useful to accurately evaluate the anatomic relationship between the lesion and the brainstem.
-
Neurol. Med. Chir. (Tokyo) · Jan 1991
Case ReportsSubarachnoid and intracerebral hemorrhage associated with necrotizing angiitis due to methamphetamine abuse--an autopsy case.
The authors report an autopsy case of methamphetamine-related intracranial hemorrhage and vasculitis. A 22-year-old female was comatose after an intravenous injection of an unknown dose of methamphetamine. Computed tomographic scans demonstrated massive subarachnoid hemorrhage and hematoma in the corpus callosum. ⋯ Postmortem studies found cerebral edema, subarachnoid, intraventricular, and intracerebral hemorrhage, and intracranial vasculitis, but no aneurysm or arteriovenous malformation. Necrosis of vessel walls with destruction of the smooth muscle layer, but no leukocytotic infiltration of the vessel walls were observed in all major cerebral arteries. The hemorrhage probably resulted from medial necrosis in the large intracerebral vessels, and a sudden drug-induced rise in blood pressure.
-
Neurol. Med. Chir. (Tokyo) · Jan 1990
Study on cases with posterior fossa epidural hematoma--clinical features and indications for operation.
In this retrospective study, 11 cases of posterior fossa epidural hematoma were analyzed in terms of clinical and radiological features, treatment, and outcome. Posterior fossa epidural hematomas accounted for 11.8% of all epidural hematomas encountered during the 7-year period studied. There were eight males and three females ranging in age from 2 to 53 years (mean, 20.7 years). ⋯ At discharge, eight patients showed good recovery and one was moderately disabled. Two patients died. The prognosis for posterior fossa epidural hematoma appears relatively good, if it is not accompanied by severe primary brainstem injury and is diagnosed early, and appropriately and promptly treated.