5 documents found, page 1 of 1
Subocclusive transvenous approach of dural arteriovenous fistula.
Pinto, Pedro Soares; Moreira, Bruno; Alves, Viriato; Caixeiro, Teresa; Stocker, Alfredo; Cruz, Romeu; Xavier, JoãoDural arteriovenous fistulae (DAVF) are usually acquired and when presented with cortical venous drainage are associated with high risk of hemorrhage. They can be treated by arterial or venous embolization, by surgery or by the combination of both techniques. Transvenous approach induces venous sinus thrombosis increasing the risk of venous stroke and/or hemorrhage.Review of all the cases of transvenous emboliz...
Neuro-Behçet: MR study of a group of patients.
Ramos, Cristina; Sá, Goreti; Tedim Cruz, Vítor; Lopes, Alexandra; Xavier, João; Cruz, RomeuBehçet's disease is a chronic inflammatory, multisystemic disease of unknown aetiology. Central nervous system involvement occurs in a variable proportion of cases (4 to 49%) and is due to intracranial hypertension secondary to dural sinus thrombosis, inflammatory parenquimal lesions or recurrent meningoencephalitis. We reviewed 12 patients, 7 men and 5 women, aged between 27 to 40 years at the time of diagnosi...
Choroidal type aneurysmal malformation of the vein of Galen associated with Dan...
Ribeiro, Valentina T; Botelho, Luís F; Lopes, Alexandra C; Ribeiro, Paula; Xavier, João A; Teixeira, João F; Cruz, RomeuLasjaunias differentiated true vein of Galen aneurysmal malformations (MAVG), which drain to the median prosencephalic vein of Markowski, the embryonic precursor of the vein of Galen, from the aneurysmal dilatations of vein of Galen (VGDA), which reveal venous drainage into a dilated vein of Galen, but already formed. In angioarchitectural terms, MAVG can still be divided in two subtypes: the mural form and the...
Aneurysmal malformation of the vein of Galen in adults.
Xavier, João; Alves, Viriato; Vasconcelos, Cristiana; Leite, António; Cruz, RomeuWe present an adult male harbouring a vascular malformation, manifested by haemorrhage, which localization, arterial feeders and venous drainage, match the pattern of choroidal type vein of Galen aneurysmal malformations seen in babies, excepting the absence of anterior choroidal arteries participation. A few cases of vein of Galen aneurysmal malformations were already reported in adults, but haemorrhage was ne...
Merosin-positive congenital muscular dystrophy, white matter abnormalities, and...
Ribeiro, Valentina T; Moreira, Nuno Canto; Teixeira, João; Guimarães, António; Cruz, Romeu; Lima, LopesCongenital muscular dystrophy (CMD) is one of the most frequent dystrophies of childhood, which is commonly characterized by neonatal muscle impairment with or without clinical evidence of central nervous system involvement. CMDs were classified into five clinically distinct forms: the two classical CMDs with and without deficit of the a2 laminin chain (merosin) caused by mutations on chromosome 6q2, the Fukuya...