Figure 14b. Direct phlebography and sclerotherapy of a venous malformation of the foot. (a) Clinical photograph shows a sclerotherapeutic procedure. Because the lesion was superficial, we used a 21-gauge butterfly needle. Venous return was observed, confirming the proper positioning of the needle. (b) Direct phlebogram demonstrates a venous malformation with a cavitary portion (straight arrow) and drainage into dysmorphic veins (curved arrow).