[Histopathological examinations of dural arteriovenous malformations of posterior fossa].

Two cases of dural arteriovenous malformation (DAVM) of the posterior fossa were presented and a histopathological examination was described. After embolization of the feeding arteries, DAVMs of the posterior fossa were removed with the adjacent sinus. Serial sections of the surgical specimens showed an abnormal mass with dilated, tortuous vessels of varying diameters in the sinus wall, and partially hyalinized connective tissue around the vessels.

[Transarterial platinum coil embolization for direct carotid-cavernous fistula].

Two cases of direct carotid-cavernous fistula (CCF) were treated by transarterial platinum coil embolization (TACE) following unsuccessful transarterial balloon embolization (TABE). Case 1 was a 47-year-old man who complained of pulsatile left exophthalmos, chemosis and bruit. Left carotid angiograms showed a CCF with anterior, posterior and cortical venous drainage.

[A rare case of cranial metastasis from hepatocellular carcinoma].

This is the first reported case of magnetic resonance imaging (MRI) findings of cranial metastasis from hepatocellular carcinoma. A 53-year-old male was admitted to our hospital on August 23, 1994, complaining of severe headache and a subcutaneous mass on the forehead. He was diagnosed as hepatocellular carcinoma in February, 1994, at another hospital.

[Sequential change of cerebral angiography in a case of cerebral angiitis following herpes zoster ophthalmicus].

Delayed neurological symptoms and signs following herpes zoster ophthalmicus (HZO) such as "Delayed contralateral hemiplegia with HZO" are supposed to be due to ipsilateral intracranial angiitis and ischemic disorder. We experienced a rare case with ipsilateral cerebral hemorrhage following HZO. Under the diagnosis of cerebral angiitis associated with HZO, we treated her conservatively and observed sequential change of angiography for four months.