Erythema multiforme: suddenly occurring, itchy, disseminated exanthema with cocard-like plaques which has been present for 4 days. here the finding on the lower leg. striated arrangement after external stimulus. s. isomorphism (Koebner phenomenon).
Pityriasis lichenoides et varioliformis acuta: acutely occurring "colorful" exanthema with differently sized papules measuring 0.2-0.8 cm, erosions, and encrusted ulcers.
Pyoderma gangraenosum. Continuously progressive, multiple, small, very pressure-painful, smeary-coated ulcers on the left lateral margin of the foot and two sides of the toes in a 71-year-old female patient with a plasmocytoma. The periulcerous surroundings show bluish-brownish streaks.
pyodermic ulcer of the skin: moderately deep, large ulcer; characteristic are the circulatory (as if grazed) borders. ulcer smearily documented. cultural evidence of klebsielles and pseudomonas aeruginosa. the cause is a care error; no known underlying disease.
Livedo racemosa: irregular, bizarre, not closed circular segments on the lower leg and ankle region, as pioneering morphological indicators of livedo racemosa; for several months, painful, bizarrely configured ulcer in the middle of the calf.
erythema induratum. inflammatory, moderately painful, red to brown-red, subcutaneous nodules and plaques. size 2.5 cm, rarely up to 10 cm. often deep-reaching, necrotic melting with subsequent ulceration. chronic course over several years possible. healing with the leaving of brownish scars.
Artifacts: Multiple, deep, punch-like ulcerations in an otherwise healthy 27-year-old female patient. CVI, AVK or immunological underlying diseases were not detectable.
Pityriasis lichenoides et varioliformis acuta: acutely occurring "colorful" exanthema with papules of different sizes, measuring 0.2-0.8 cm, erosions, and encrusted ulcers; healing with formation of varioliform scars.
Venous leg ulcer. large ulcer surrounding the distal third of the lower leg and the region of the outer ankle (gaiter ulcer). sharp edges of the wet, barely covered ulcer area. no indication of AVK.
Ulcus cruris venosum. ecthyma-like, infected (Pseudomonas aeroginosa) ulcers with yellowish-greenish or brownish coatings in an immunocompromised, 78-year-old patient with CVI. severely inflamed wound edges. the development of the ulcers is initially due to stabbing reactions about 15 months ago. the sutures shown are residuals of the previously performed biopsies.
venous leg ulcer. chronic, sharply defined ulcer in the region of the medial aspect of the right ankle. distinct flat tissue hardening of the surrounding area. picture of atrophie blanche in CVI. there is a broad hyperpigmented band on the back of the foot.
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