Intraosseous venous drainage anomaly of the tibia treated with imaging-guided sclerotherapy.

A 23-year-old man presented with a pre-tibial soft tissue mass. Magnetic resonance images demonstrated the subcutaneous, intracortical and intramedullary components of an intraosseous venous drainage anomaly, which was confirmed by direct venography. Sclerotherapy using absolute alcohol was subsequently performed under imaging guidance with complete resolution of the subcutaneous component of the lesion.