AVM/Vascular malformation

Vascular anomalies are grouped as vascular malformations, or vascular tumors, such as hemangiomas. Vascular malformations are further classified as high flow masses, representing arteriovenous malformations or arteriovenous fistulae, or low flow lesions, including venous, lymphatic or combined veno-lymphatic tumors.

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AP magnified and oblique maximum intensity projection subtracted MR images of the lower extremities demonstrate a persistent lateral marginal vein, a congenital venous anomaly, with multiple collateral connections to the deep venous system, which was intact.
References
  1. Flors L, Leiva-Salinas C, Maged IM, et al. MR imaging of soft-tissue vascular malformations: diagnosis, classification, and therapy follow-up. Radiographics 2011; 31:1321-1340; discussion 1340-1321. PubMed link
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