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Risk of multiple sclerosis after optic neuritis in patients with normal baselin...

When assessing and managing a patient with optic neuritis (ON), the risk of future development of multiple sclerosis (MS) is an important issue, as this can be the first presentation of the disease. Although the presence of lesions on baseline brain MRI is the strongest predictor of MS conversion, some patients with normal imaging also develop MS. We aimed to estimate MS risk in patients with ON and a normal ba...

The role of strain localization in magma injection into a transtensional shear ...

This study deals with the interaction between deformation and magmatism in mid- to deep-crustal domains. The relation is analysed between migmatites and shear zones and the spatial distribution of leucogranitoid veins and dykes running through a footwall migmatite system, and reaching a transtensional shear zone operated under amphibolite- to greenschist-facies metamorphic conditions (Boa Fé shear zone, Varisca...

Antiagregantes:quem e quando parar?

Síndrome de Sjögren ou esclerose múltipla? Um dilema na prática clínica

The authors present a clinical case of a male, 53-years old with a multiple sclerosis like syndrome, progressive, with 3 years of evolution. The patient also referred dry eye and inflammatory arthralgias, the complementary workup was according with Sjögren's Syndrome. The central nervous system involvement of Sjögren's Syndrome and the difficulty of differential diagnosis with neurological diseases such as Mult...

Enfarte Agudo do Miocárdio Associado a Origem Anómala das Artérias Coronárias (...

A origem da artéria coronária esquerda a partir do ostio ou do segmento proximal da artéria coronária direita é uma anomalia congénita rara (0,03 a 0,4%), e um achado angiográfico pouco comum (0,6 a 1,3%) (artéria coronária única). A anomalia congénita coronária mais frequente é a origem separada da artéria descendente anterior e da artéria circunflexa no seio coronário esquerdo. A segunda anomalia mais comum é...