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540 : um número, um lugar, uma identidade

The Development of the Cerebral Venous System - from the Embryo to the Adult De...

Introduction: The human development consists of a continuous process where an uninterrupted pattern of extremely complex repetitive cycles of growth, modulation and modification take place. Despite this extreme complexity, the normal development is ordered by an impressive regularity, namely, in chronological, anatomical, topographic and physiological trends. In some organic systems, this development will not b...

Mesial-temporal Lesions in Patients with Neurosyphilis

Background and Purpose: Evaluate and describe clinical and imaging findings in two patients with mesial-temporal changes in a context of Neurosyphilis Methods: The clinical files of two patients with mesial-temporal lesions in the context of Neurosyphilis were reviewed, gathering information about sex, age, clinical presentation, laboratory and EEG changes, treatment and clinical outcome. An emphasis was placed...

Anatomy and Variants of the Cerebral Venous System – Fact or Defect?

The anatomy of the cerebral venous system (CVS) is based on a known variable three-dimensional structure. For a correct recognition and characterization of its elements, a detailed knowledge of its anatomy and potential variants is essential However, this structural changes, commonly named as variants, may appear in asymptomatic situations as well as associated to certain pathological syndromes with diagnostic ...

Angio-CT in atheromatous carotid disease.

CT angiography is a diagnostic tool, which is rapidly becoming an important modality for non-invasive evaluation of the neurovasculature. The aim of this article is to review this method, including acquisition and image processing protocols and its application for the evaluation of atherosclerotic stenosis of the carotid artery. Illustrative cases are shown and a revision of the literature is also made. ; CT a...

Evaluation of cerebral glioma with advanced magnetic resonance techniques.

Magnetic Resonance Imaging (MRI) is the technique of choice for the radiological evaluation of cerebral gliomas. Determination of its malignant grade is important for therapeutic approach and prognosis. The authors focus on the utility of MRI advanced techniques, namely proton magnetic resonance spectroscopy, perfusion and diffusion. These techniques are complementary to conventional MRI and allow improved non-...