Necrosis and Infection

Nov 3, 2016 by in Dermatology Comments Off on Necrosis and Infection

Fig. 31.1 Acinetobacter baumannii colonization and impaired blood flow Fig. 31.2 Acinetobacter baumannii colonization and impaired blood flow Ecthyma gangrenosum (EG) is a well-recognized but rare case of cutaneous infection…

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Skin Necrosis due to Snakebites

Nov 3, 2016 by in Dermatology Comments Off on Skin Necrosis due to Snakebites

Fig. 16.1 (a) The picture shows two fang marks on the left ring finger. Swelling and tissue necrosis are visible around the fang marks. (b) The picture shows that the…

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Arterial Leg Ulcers

Nov 3, 2016 by in Dermatology Comments Off on Arterial Leg Ulcers

Stage I Asymptomatic Stage II Claudicatio intermittens Walking distance:  IIA >200 m, with no disablement  IIB < 200 m with disablement Stage III Resting pain Stage IV Peripheral necrosis/gangrene 35.3…

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Toxic Syndromes

Nov 3, 2016 by in Dermatology Comments Off on Toxic Syndromes

1. Fever ≥38.9 °C 2. Rash-diffuse macular erythroderma 3. Desquamation–1–2 weeks after onset of illness, especially of palms and soles 4. Hypotension–systolic blood pressure ≤90 mmHg for adults 5. Multi-system…

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Fournier Gangrene

Nov 3, 2016 by in Dermatology Comments Off on Fournier Gangrene

Fig. 32.1 Pathophysiology of Fournier gangrene Originally, Meleney reported in his 1924 series of Chinese men with necrotizing infections that streptococcal species were the responsible genus for this virulence [5]….

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Hand Necrosis

Nov 3, 2016 by in Dermatology Comments Off on Hand Necrosis

Autoimmune diseases Infection Scleroderma and CREST syndrome Hepatitis B and C Lupus and antiphospholipid syndrome HIV Sjögren-Gougerot syndrome Endocarditis Sharp syndrome Mycoplasma Rheumatoid arthritis, Still’s disease Rickettsiosis Dermatomyositis and polymyositis…

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Hidradenitis Suppurativa

Nov 3, 2016 by in Dermatology Comments Off on Hidradenitis Suppurativa

Fig. 19.1 Hurley stage II characterized by recurrent nodules and abscesses, formation of sinus tracts, and scarring Fig. 19.2 Hurley stage III characterized by diffuse involvement of the area with…

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Imaging of Hypodermal Fat Necrosis

Nov 3, 2016 by in Dermatology Comments Off on Imaging of Hypodermal Fat Necrosis

Fig. 4.1 Fat necrosis on mammography (lateral view) shows a “rim-like” or “egg-shell” type of calcification (arrow) within the fatty tissue of the breast 4.2.2 Ultrasound Also called sonography, this…

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Livedo(id) Vasculitis

Nov 3, 2016 by in Dermatology Comments Off on Livedo(id) Vasculitis

Fig. 26.1 Livedo Fig. 26.2 Ulceration and livedoid aspect Fig. 26.3 Chronic ulcerations Fig. 26.4 Healing with white atrophic surrounding plaques and telangiectases References 1. Khenifer S, Thomas L, Balme…

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Cryoglobulinemia

Nov 3, 2016 by in Dermatology Comments Off on Cryoglobulinemia

Ischemic necrosis (40 % in type I, 0–20 % in mixed types) Palpable purpura (15 % in type I, 80 % in mixed types) Livedoid vasculitis (1 % in type…

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