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Case Report

NMJ. 2014; 3(1): 15-19

Role of susceptibility weighted imaging to detect occult microhemorrhages due to developmental venous anomaly

*Umamaheswara Reddy V,** Kishor.V. Hegde,***Kiranmai,****Venkatesh Manchikanti,*****Amit Agrawal.

Developmental venous anomalies (DVAs) are most common intracranial vascular malformations. Majority of DVAs are asymptomatic with little clinical significance, However in rare situations they can be complicated and cause hemorrhage2, ischemic complications. On imaging caput medusae or umbrella or palm tree top like convergence of numerous venules on a single transparenchymal vein can be visualized. Susceptibility weighted imaging is very useful in detecting paramagnetic blood products and venous malformations. We report a case of venous malformation which was otherwise obscure on routine spin echo sequences but was seen on susceptibility weighted imaging, later sequence also showed microhemorrhages surrounding the malformation.

Key words: Venous angioma, Susceptibility weighted imaging, Hemorrhage, Developmental venous anomaly

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