Calf muscle arteriovenous malformations detected by technetium-99m erythrocyte venography

Two cases of calf muscle arteriovenous malformation in young women, presenting clinically as deep venous thrombosis, were initially detected by Tc-99m erythrocyte venography and later confirmed by arteriography. The role of this technique in the investigation of venous thrombosis is discussed, emphasizing the importance of the lateral calf view.