OUTLINE: Patients undergo fluoroscopic placement of angiographic arterial and venous catheters into the appropriate extremity. After the limb is warmed, melphalan and dactinomycin are rapidly infused into the isolated limb via the arterial catheter. Melphalan and dactinomycin are then recirculated for 20 minutes. Patients with little or no response at 8 weeks may receive up to 2 additional treatments at the discretion of the treating physician.