Buerger's test showing postural colour change in an ishaemic foot – white when the foot is elevated (right) and red when lowered (left).
Doppler ultrasound to measure the ankle–brachial Doppler pressure index.
Secondary changes in erythromelalgia due to immersion in water to relieve symptoms (a) irritant contact dermatitis, and (b) fissuring. (Courtesy of P...
Hereditary haemorrhagic telangiectasia.
Larger venous lakes on upper and lower lips.
Infant with an arteriovenous malformation.
Trophic changes including dry skin, cracks, loss of hair and thickened nails (the latter two not shown on figure).
Ischaemic toes in Buerger disease.
(a) Generalized essential telangiectasia; (b) generalized essential telangiectasia showing blanching with pressure.
Spider telangiectases. Classically, when the central arteriole is compressed, the skin blanches and the lesion temporarily vanishes but rapidly return...
Angioma serpiginosum: (a) grouped lesions, and (b) close up appearance.
Verrucous haemangioma. (a) A linear congenital hyperkeratotic plaque on the lower leg and ankle of a child. (b) Dilated vessels in the superficial der...
(a) Atrophie blanche: white scars with a central ischaemic ulcer and telangiectasia at the edge of the white areas. (b) Venous ulceration with atrophi...
Platelet emboli can lodge in the vasculature causing areas of discoloration in the toes and sole of the foot, and can appear ‘vasculitic‐like’.
Angiography in thromboangiitis obliterans showing vascular occlusion and corkscrew collaterals.
Benign essential telangiectasia: (a) arborizing pattern, and (b) close up appearance.
Klippel–Trenaunay syndrome: (a) with capillary/venular malformation; (b,c) abnormal veins and soft‐tissue overgrowth.
(a) Varicose veins in the left leg, and (b) with superficial telangiectasia.
Corona phlebectatica paraplantaris.
Ulceration of the skin at pressure points.
Patient during an attack of erythromelalgia.
(a) Angiokeratoma; (b) dermoscopic view of angiokeratoma.
Small venous lake.
(a) Unilateral naevoid telangiectasia, and (b) showing grouped lesions in close up.
Superficial venous thrombosis.
Hyperpigmentation secondary to venous insufficiency.