close up doppler ultrasound of deep vein thrombosis superficial femoral vein left thigh medical healthcare concept

anticoagulant aspirin background bandage bedside claudication closeup compression deep diagnosis discharge doctor doppler dressing dvt four gaiter health heparin high hyperpigmentation icons insufficiency ischaemic ischemia layers leg ligation limb limbs lower pain physician plastic pulseless purulent red scar sclerotherapy skin stock superficial surgeon surgery swelling thrombosis treatment ulcer ulcers ultrasound varicose vascular vein veins venous warfarin