Sinus thrombosis in idiopathic hypereosinophilic syndrome causing fatal cerebral haemorrhage.

Idiopathic hypereosinophilic syndrome (HES) is a leukoproliferative disorder that is characterized by sustained overproduction of eosinophils and a trend towards damage to specific organs, usually the cardiovascular system. We report the case of a 76-year-old woman who was affected by idiopathic HES, which had an unusual and rapidly fatal course. Sinus thrombosis in the transverse and sigmoid sinuses was evident on cranial CT and CT angiography.

Intracranial peripheral-type primitive neuroectodermal tumor.

A 15-year-old man presented with headache. Magnetic resonance (MR) imaging revealed a large extraaxial tumor with cyst at the right frontotemporal region. The solid part of the tumor was homogeneously enhanced on T(1)-weighted MR imaging after injection of gadolinium.

Ectopic recurrence of dysplastic gangliocytoma of the cerebellum (Lhermitte-Duclos disease): a case report.

Lhermitte-Duclos disease is a rare clinical entity characterized by slow deformation of the cerebellar lesion. A 53-year-old woman presented with Lherimitte-Duclos disease manifesting as ataxic gait, occipital headache, and loss of consciousness. Magnetic resonance imaging demonstrated striated and laminar pattern lesions in the right cerebellar hemisphere and vermis.

[Clinical investigation of cerebral infarction following head and neck injury].

The diagnosis of cerebral infarction following head and neck injury is difficult because of the lucid interval, which causes high mortality and morbidity. We report six patients with cerebral infarction following head and neck injury, whom we treated from 1993 to 2005. Only one patient suffered from cerebral infarction following direct neck injury.

Cavernous sinus dural arteriovenous fistula associated with the development of sphenoidal ridge meningioma--case report.

A 76-year-old man presented with a cavernous sinus (CS) dural arteriovenous fistula (AVF) associated with the development of a meningioma without venous sinus occlusion. Initial digital subtraction angiography did not reveal the CS dural AVF, which appeared simultaneously with the enlargement of the meningioma and lead to right oculomotor nerve paresis. In this case, the development of meningioma possibly increased the vascular tumor bed and affected the venous hemodynamic return, thus leading to the dural AVF.

Postpartum dissecting aneurysm of the posterior cerebral artery.

Intracranial dissecting aneurysm may cause subarachnoid hemorrhage (SAH) or infarction, and postpartum dissecting aneurysm is rare. A 30-year-old 6 days postpartum woman presented with posterior cerebral artery (PCA) dissection evolving dramatically over a short period. She had been well until 6 days after delivery when she suffered sudden onset of headache, vomiting, and unconsciousness.

[Intracranial osteolytic hemangiopericytoma manifesting as a rapidly enlarging extracranial soft tissue mass lesion].

Hemangiopericytoma is a highly vascular and rapidly growing tumor, which tends to recur at distant locations. Complete surgical resection is often difficult because of intraoperative excessive hemorrhage or brain swelling. A 31-year-old male presented with intracranial osteolytic hemangiopericytoma manifesting as a rapidly enlarging extracranial soft tissue mass lesion causing a subcutaneous mass in the forehead.

[Retrospective analysis of effects and complications in cases treated with endoscopic evacuation of intracerebral hemorrhage].

We described our experience of 22 cases treated with endoscopic evacuation of intracerebral hematoma, including 16 putaminal, 3 thalamic, and 1 cerebellar hemorrhages. All endoscopic procedures were performed under local anesthesia. A rigid-rod endoscope and a suction device attached was introduced through a transparent sheath into the hematoma cavity.

[Intracranial granulocytic sarcoma in a patient with acute myeloid leukemia].

Granulocytic sarcoma (GS) is extramedullary tumor composed of immature leukemic cells. GS is presenting usually as a complication during the course of hematologic neoplasm, such as acute myeloblastic leukemia as well as myeloproliferative and myelodysplastic syndrome. The tumor was also called chroloma based on the green color of the tumorous mass.

Cavernous sinus dural arteriovenous fistula complicated by pontine venous congestion. A case report.

Background: Brainstem venous congestion is a rare but serious complication of the CS-dAVF (cavernous sinus dural arteriovenous fistual).

Case Description: A 71-year-old woman presented with right abducens nerve palsy. Brain MRI showed a solitary lesion in the right upper pons.

[A case of secondary anterior fossa dural arteriovenous fistula following posterior fossa craniotomy].

The etiology of dural arteriovenous fistula (AVF) remains uncertain. The authors present a case presenting with anterior fossa dural AVF, which developed after the resection of cerebellar arteriovenous malformation (AVM). The anterior fossa dural AVF, which was not observed on the preoperative angiography, was diagnosed on the follow-up angiography, after the resection of cerebellar AVM.

[Nontraumatic arterial dissection of the anterior cerebral artery: six cases report].

Nontraumatic arterial dissection of the anterior cerebral artery (NAD-ACA) is a relatively rare disease entity, although case reports have recently been increased. We treated 6 patients suffering from NAD-ACA from January 1996 to December 2003, and the neuroradiological findings together with the clinical courses were reviewed. There were 3 males and 3 females with a mean age of 57.

Malignant intracranial epithelioid hemangioendothelioma presumably originating from the lung: case report.

Objective And Importance: Epithelioid hemangioendothelioma (EHE) is a rare vascular tumor that presents histological features and biological behavior of low-grade malignancy. The authors report a case of malignant intracranial EHE, in which surgical excisions and additional immuno-chemotherapy were ineffective. Emphasis is placed on the histological features of this rare tumor and its potential for malignancy.

[A case of peripheral-type primitive neuroectodermal tumor arising in the dura mater at the frontal base].

A 7-year-old boy was admitted to our hospital because of headache and frequent vomiting. The patient was noted to have papilloedema and mild palsy of the right abducent nerve. Magnetic resonance image (MRI) revealed a large tumor in the frontal base with tumoral hemorrhage.

[Recurrent cerebellar abscess secondary to middle ear cholesteatoma: case report].

We report a case of recurrent cerebellar abscess secondary to middle ear cholesteatoma. A 57-year-old man was admitted to our hospital because of symptoms of headache and nausea in August, 1992. Brain CT scans revealed acute hydrocephalus complicated by a cerebellar abscess.