Erythema chronicum migrans: about 2-3 months old with slow peripheral expansion; painless, non-itching, circular erythema which is well distinguishable from normal skin; the bite is still centrally visible.
Cellulitis eosinophil: acute formation of circumscribed, large, sharply margined plaques The surface of the plaques may have an orange peel-like texture (see following figure)
Acrodermatitis chronica atrophicans: Initially flat, oedematous, livid red plaques; beginning transition to pronounced, flaccid atrophy with typical wrinkling of the skin (cigarette-paper phenomenon) and clearly translucent vein networks.
Primary cutaneous follicular center lymphoma: coarse, painless, solid tumor, clearly elevated above the skin level, grown within 3 months, two smaller smooth, shiny tumors in the immediate vicinity of the arm.
Erysipelas: Sharply limited redness along the left back of the foot and the outer side of the foot with hemorrhagic, partly putrid blistering in a 74-year-old female patient.
necrobiosis lipoidica: necrobiosis lipoidica that has existed for several years. extensive scarring in the centre. reddened plaques around the edges. ecthymata-like ulcers and scarring.
Cimicosis. acutely appeared after hotel overnight, smooth, standing in a line-shaped grouping, intensely itching, 0.2-1.0 cm large, red papules and papulovesicles with (indicated) central bite sites. Around the bite sites a collateral erythema appears.
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