The term "meningeal melanocytoma" was first used by Limas and Tio in 1972 to describe a benign tumor of melanocytic origin arising from the leptomeninges [2]. In the World Health Organization classification of brain tumor, meningeal melanocytoma represents a subgroup of primary melanocytic lesion, which most frequently originates from the leptomeninges of posterior fossa or along the spinal cor...

This report describes a case of middle meningeal artery aneurysm caused after cranial surgery. A 55-year-old woman who experienced a ruptured internal carotid artery anterior wall aneurysm was treated by internal carotid artery trapping and high-flow bypass using a radial artery graft. Eight days after surgery, we performed cerebral angiography to confirm patency of the radial artery graft and ...

Middle meningeal artery (MMA) pseudoaneurysms are very rare and are most often traumatic. They may present as an epidural or intraparenchymal hematoma. This study reports a rare case in which a patient suffered from intractable epistaxis because of a pseudoaneurysm in middle meningeal artery and skull base fracture after craniocerebra trauma. Pseudoaneurysm and the feeding artery were embolized...

This case of traumatic carotid-cavernous fistula was caused by rupture of a peculiar ipsilateral intracavernous anastomosis between the accessory meningeal artery and the redundant deep recurrent ophthalmic artery. In the opposite cavernous sinus there was an obvious anastomosis between the accessory meningeal artery and the ophthalmic artery, probably located in the lateral part of the caverno...

Primary melanomata of meninges are rare tumours, and well-documented cases rarer still. In 1935 Akelaitis, in a comprehensive review of the literature, collected 29 cases and added one of his own. In 1949 Touraine reviewed all the reported cases of primary pigmented tumours of the meninges; the total was then 66, an addition of only 29 cases in 14 years. Both Akelaitis and Touraine, however, ex...

An extremely rare variation of the (left) middle meningeal artery (MMA) originating from the basilar artery, detected incidentally during cerebral angiography, is reported. The right MMA was normal and an accessory meningeal artery arising from the maxillary artery was present on both the sides. The foramen spinosum on the variant side was absent. This abnormal origin of the MMA can be explaine...

The tentorial arteries arise from three main sources [1]. The first is the cavernous segment of the carotid artery. The meningohypophyseal trunk gives rise to the basal tentorial artery (artery of Bermasconi-Cassanari) , and the inferior cavernous sinus artery gives rise to the marginal tentorial artery. The second source is the meningeal branch of the superior cerebellar artery. The third is t...

The middle meningeal artery of the dog usually diverges from the maxillary artery before it enters into the alar canal. This vessel shows an extremely complicated relationship between the passage into the cranial cavity and the r. anastomoticus as well as the anastomotic artery. In some carnivora, branches of the maxillary artery in this region communicate with the internal carotid artery. Espe...