Yoshito Morooka

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A patient presented with a subarachnoid hemorrhage associated with a vitreous hemorrhage. Angiography was first interpreted as revealed a saccular aneurysm at the junction of the vertebral and posterior inferior cerebellar arteries. At operation it was evident that the aneurysm was a dissecting one of the vertebral artery. The proximal portion of the(More)
A case of dural arteriovenous malformation in the anterior fossa is reported. It first caused a subarachnoid hemorrhage and subsequently an intracerebral hematoma. Pertinent literature is briefly reviewed. Such malformations may be divided into three groups; those involving primarily the basal dura mater of the anterior fossa, the anterior portion of the(More)
Lhermitte-Duclos Disease (LDD) is a rare cerebellar lesion that has long been controversial as to whether the entity is a hamartoma, a malformation, or a neoplasm. Recent advances in metabolic imaging and molecular biology have unveiled biological features of LDD and a close relationship between LDD and Cowden disease. Adult onset LDD is now considered(More)
BACKGROUND Although dementia is one of the curable manifestations of a dural arteriovenous malformation (AVM), the pathophysiology remains unclear. CASE DESCRIPTION We describe an elderly patient who had an AVM in the tentorium and manifested signs of dementia from ischemia, predominantly in the bilateral thalami. Intravascular embolization of the dural(More)
We report on three cases of remote cerebellar hemorrhage after supratentorial craniotomy, which had much in common in their computed tomographic, operative, and clinical findings. We speculate that, when the patient is in the supine position, displacement of the cerebellum causes stretching of the superior vermian veins and their tributaries, resulting in(More)
In an investigation of the changes in cerebral blood flow (CBF) in subarachnoid hemorrhage , CBF was monitored in 14 patients who underwent surgery within 3 days of the onset of hemor rhage. On admission, one patient was neurological grade I, one was grade II, seven were grade III , and five were grade IV. Computed tomography showed diffuse , thick(More)
Cerebral blood flow (CBF) of 6 patients with poor outcome after subarachnoid hemorrhage is analyzed. Neurological grades of these patients were grade III in 2 and grade IV in 4 patients, and subarachnoid hemorrhage on CT was diffuse and thick in all patients. Cerebral blood flow was continuously measured for 7 to 19 days by the thermal diffusion flow probe(More)