Acute aggravation of subdural fluid collection associated with dural metastasis of malignant neoplasms: case report and review of the literature.

A 63-year-old woman was admitted to our hospital with serious headache and vomiting. Five months before admission, she had undergone surgery for a primary advanced gastric cancer. Neuroradiological examinations revealed subdural fluid collection.

[Metastatic brain tumors with simultaneous multiple cerebral hemorrhages: a case report].

We encountered a case of multiple metastatic brain tumors with simultaneous multiple cerebral hemorrhages. A 45-year-old male suffered from sudden left hemiplegia and was admitted to our hospital. CT scans on admission revealed multiple cerebral hemorrhages with surrounding brain edema in the right frontal lobe, left frontal lobe, right occipital lobe and right basal ganglia.

[Nontraumatic arterial dissection of the anterior cerebral artery with simultaneous cerebral infarction and subarachnoid hemorrhage: a case report].

We encountered a case of nontraumatic arterial dissection of the anterior cerebral artery (ACA) which exhibited cerebral infarction and subarachnoid hemorrhage (SAH) simultaneously, and whose symptoms were improved by conservative treatment. A 55-year-old female presenting with headache and weakness in her left leg was admitted to our hospital. CT scans on admission revealed SAH in the interhemispheric fissure and surface of the right frontal lobe, but CT scans at 3 days after onset demonstrated cerebral infarction in the medial part of the right frontal lobe.

[A case of cerebral arteriovenous malformation revealing repeated intranidal hemorrhage accompanying neovascularization after stereotactic radiosurgery].

We report a patient with cerebral arteriovenous malformation (AVM) revealing growing mass lesion after stereotactic radiosurgery. This 12-year-old female presented headache. CT scan showed hematoma at the head of the right caudate nucleus and angiography showed AVM at the site.

[Hyperkalemia caused by intravenous administration of mannitol in a patient with arteriovenous malformation: case report].

We experienced a case in which hyperkalemia was induced by mannitol administration. The medication with mannitol was given to a 15-year-old male patient who underwent a removal operation for arteriovenous malformation under general anesthesia. Following the mannitol infusion, his arterial blood gas and electrolyte analysis revealed severe metabolic acidosis and an increase in serum potassium.

Growth control of C6 glioma in vivo by nerve growth factor.

Treatment with nerve growth factor (NGF) causes differentiation of rat C6 glioma cells and strongly inhibits their proliferation in vitro. This suggests that induction of NGF-mediated differentiation may provide a novel therapeutic approach to growth control of glial tumors. We examined the effects of NGF treatment on the growth potential of C6 glioma, which expressed NGF receptor in vivo.