Why a Foam Sclerotherapy Doctor May Recommend Ultrasound Guidance

Picture a patient whose leg looks clear at the surface, only fine vein specialist spider veins around the ankle, yet her ankle ulcer will not heal. On exam, the skin feels cooler near the wound and there is subtle swelling. A handheld Doppler hums, but the signal jumps. When I roll the ultrasound probe over her calf, a hidden perforator pumps blood backward with each squ