Case Report- Developmental Venous Anomaly (DVA)/CT BRAIN 🧠/ Radiology 2.0....... скачать в хорошем качестве

Case Report- Developmental Venous Anomaly (DVA)/CT BRAIN 🧠/ Radiology 2.0.......

Developmental Venous Anomaly; DVA, also called venous "angioma" or "venous malformation," is an umbrella-shaped congenital cerebral vascular malformation composed of angiogenically mature venous elements. Persistence of primitive medullary veins with recruitment of transparenchymal anastomotic drainage pathways eventually matures into a classic DVA. Approximately 70% of DVAs are found in the deep white matter, adjacent to the frontal horn of the lateral ventricle. The second most common location is next to the fourth ventricle (15-30%). General Features. DVAs are composed of radially arranged medullary veins that converge on a transcortical or subependymal large collector vein. The classic appearance is that of a "Medusa head" or upside-down umbrella. CT Findings NECT scans are usually normal unless the DVA is very large and a prominent draining vein is present. Unilateral basal ganglia calcification has been reported in the drainage territory of some deep DVAs. CECT scans show numerous linear and/or punctate enhancing foci that converge on a well-delineated tubular collector vein . MR Findings- • T2/FLAIR-Collector vein = flow void on T2WI .Radicles of "Medusa head" hyperintense on FLAIR. • T2* (GRE/SWI)-Linear hypointensities in radicles, collector vein.Blooming foci if mixed with CCM • T1 C+- "Umbrella" of tubular radicles → collector vein DSA -Classic "Medusa head" in venous phase . . . . . . . . Please like,share and subscribeto this video...... Thank You so much .....