Malignant transformation of meningeal melanocytoma: a case report.

Intracranial meningeal melanocytoma is an uncommon tumor that is considered benign. We formerly reported an intracranial meningeal melanocytoma. Here we report a extremely rare case of malignant transformation of this tumor.

[A case of bleeding dural arteriovenous fistula of the transverse-sigmoid sinus with pure leptomeningeal drainage, varix: case report].

We reported a case of bleeding from the varix of a transverse-sigmoid sinus dural arteriovenous fistula with pure leptomeningeal drainage. A 55-year-old man presented with visual disturbance. neurological examination revealed left homonymous hemianopsia.

[The improvement in regional cerebral blood flow in the anterior cranial fossa which was affected by a dural arteriovenous fistula: case report].

We report a case of dural arteriovenous fistula of the anterior cranial fossa with venous ischemia. A 55-year-old man presented with headache and visual disturbance. Neurological examination showed no abnormality.

Traumatic lesions of the bilateral middle meningeal arteries--case report.

A 44-year-old man presented with traumatic injuries of the bilateral middle meningeal arteries after a traffic accident. Neurological examination found left visual impairment due to left optic nerve injury. Computed tomography demonstrated a small amount of left epidural hemorrhage and bilateral skull fractures.