Differential diagnosis Characterization Connective tissue diseases Digital artery fibrosis and hyperplasia leading to vascular occlusion. Scleroderma Systemic lupus erythematosus Mixed connective tissue disease Vasculitis Inflammation and fibrinoid necrosis of vascular…
Fig. 6.1 Pallor phase in a patient with PRP On examination there are no abnormalities. The skin of her fingers is cool but normal. Her upper limb peripheral pulses are…
Fig. 14.1 Patient with longstanding RP and SSc and no atherosclerotic risk factors. She presented with dry gangrene of multiple toes and no palpable pedal pulses. Angiography showed severe tibial…
Fig. 11.1 Frostbite: These pictures show evidence of frostbite-related tissue injury following accidental prolonged cold exposure. After 36 h of outdoor exposure to freezing conditions, he was rescued and admitted…
Fig. 12.1 (a, b) The nailfold videocapillaroscope. The morphology of the nailfold dermal papillary capillaries is being studied by first putting a drop of oil on the nailfold and afterwards…
Type I Complete occlusion of radial or ulnar artery; decreased flow and narrowing in level 2 and 3 arteries Type II As I, but with stenosis of radial or ulnar…
Fig. 23.1 Bedside examination of nailfold demonstrates enlarged capillary loops and areas of dropout of capillaries typical of scleroderma In managing this patient it is recognized that she is at…
Classification of Raynaud’s phenomenon Key characteristics Primary Raynaud’s Familiar predisposition, young age of onset, lack of digital ulceration, absence of ANA Secondary Raynaud’s Connective tissue diseases Features of SSc, SLE,…
Fig. 5.1 RP. Schematic represention of RP demonstrating cold-induced constriction and vasospasm of the digital arteries, which precipitates a marked reduction in finger blood flow and contributes to the characteristic…
Fig. 4.1 The human cutaneous microvascular system. Three dimensional (3D) structure of the superficial microvascular system of human finger skin obtained by scanning electron microscopy (SEM) of corrosion casts [83]….
