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Pyoderma gangrenosum is a rare, ... which is the appearance of new lesions at sites of trauma, including surgical wounds. [15] Diagnosis
Pathergy is a skin condition in which a minor trauma such as a bump or bruise leads to the development of skin lesions or ulcers that may be resistant to healing. Pathergy can also lead to ulcerations at the site of surgical incisions. Pathergy is seen with both Behçet's disease and pyoderma gangrenosum. [1]
Pyoderma gangrenosum is variably expressed, which means that it is not always present in all individuals with the disease. It presents as poorly healing ulcers with undermined edges. Pathergy is an important feature (this term refers to the tendency of ulcers to arise at points of injury).
A similar response occurs in pyoderma gangrenosum and Behcet's syndrome, and is referred to as pathergy. [3] Rarely Koebner phenomenon has been reported as a mechanism of acute myeloid leukemia dissemination. [4] Warts and molluscum contagiosum are often listed as causing a Koebner reaction, but this is by direct inoculation of viral particles. [3]
Cutaneous vasculitis, pyoderma gangrenosum, [1] calciphylaxis [2] Martorell's ulcer , also known as hypertensive leg ulcer or necrotic angiodermatitis , [ 1 ] is a painful ulceration of the lower leg associated with diastolic [ citation needed ] arterial hypertension .
Necrolytic migratory erythema is a red, blistering rash that spreads across the skin. It particularly affects the skin around the mouth and distal extremities; but may also be found on the lower abdomen, buttocks, perineum, and groin.
Pyoderma means any skin disease that is pyogenic (has pus). These include superficial bacterial infections such as impetigo , impetigo contagiosa , ecthyma , folliculitis , Bockhart's impetigo , furuncle , carbuncle , tropical ulcer , etc. [ 1 ] [ 2 ] Autoimmune conditions include pyoderma gangrenosum .
Ecthyma gangrenosum is a type of skin lesion characterized by vesicles or blisters which rapidly evolve into pustules and necrotic ulcers with undermined tender erythematous border. " Ecthyma " means a pus forming infection of the skin with an ulcer, "gangrenosum" refers to the accompanying gangrene or necrosis.