Spontaneous spinal epidural hematoma as a potentially important stroke mimic.

Hemiparesis develops in response to a wide range of neurological disorders, such as stroke, neoplasms and several inflammatory processes. Occasionally, it may also occur due to a lesion located in the high cervical spinal cord. In this concise review, we describe the features of spontaneous spinal epidural hematoma, which should be included in the large list of stroke mimics.

Intraoperative monitoring during surgery for hypoglossal schwannoma.

A 54-year-old man presented with an intracranial schwannoma of the hypoglossal nerve between the medulla and the left hypoglossal canal. The condylar fossa approach was used with intra-operative electromyography (EMG) monitoring of the lower cranial nerves. The tumor was then removed carefully without decreasing the tongue EMG responses.

Clipping of a vertebral artery aneurysm behind the hypoglossal nerve under the monitoring of lower cranial nerves.

Under an operative view, an aneurysm of the vertebral artery is located behind the lower cranial nerves. To prevent neurological deficits we employed electrophysiological monitoring while clipping an aneurysm of the vertebral artery. A 64-year-old woman had suffered a sudden severe headache in the morning.

Platelet and leukocyte adhesion in the microvasculature at the cerebral surface immediately after subarachnoid hemorrhage.

Objective: Pathophysiology after subarachnoid hemorrhage (SAH) caused by aneurysmal rupture has not been well examined. The purpose of this study was to observe platelet-leukocyte-endothelial cell interactions as indexes of inflammatory and prothrombogenic responses in the acute phase of SAH, using an in vivo cranial window method.

Methods: Subarachnoid hemorrhage was induced in C57Bl/6J mice by using the endovascular perforation method.

SIADH is only an atypical clinical feature in a patient with prolactinoma.

A 50-year-old man was admitted to determine the pathogenesis of hyponatremia. He had a poor appetite and was easily fatigued. Physical findings showed that he was conscious and alert.

Leptomeningeal dissemination of pilocytic astrocytoma via hematoma in a child. Case report.

A case of recurrent pilocytic astrocytoma with leptomeningeal dissemination (LMD) is described. A cerebellar tumor was diagnosed in a 3-year-old boy, in whom resection was performed. When the boy was 6 years of age, recurrence was treated with surgery and local radiotherapy.

SIADH closely associated with non-functioning pituitary adenoma.

We demonstrated severe hyponatremia in a 68 year-old man who had pituitary tumor. He had poor appetite and was disoriented. Tests revealed hyponatremia of 110 mmol/l, and he was admitted to Jichi Medical School Omiya Medical Center to undergo further tests.

Ruptured vertebral artery-posterior inferior cerebellar artery aneurysm associated with pulseless disease--case report.

A 48-year-old woman with a 29-year history of pulseless disease presented with subarachnoid hemorrhage caused by a rare ruptured intracranial aneurysm of the right vertebral-posterior inferior cerebellar artery. The aneurysm was successfully clipped. Pulseless disease is a chronic and nonspecific vasculitis involving mainly the aorta and its main branches such as the carotid, subclavian, vertebral, and coronary arteries.