Necrobiosis lipoidica: Necrobiosis lipoidica that has existed for several years. Large, atrophic scarring (translucent vessels) in the centre. Reddened progression zone at the edges.
acne conglobata. multiple comedones in the area of nose, cheeks and neck of a 53-year-old patient. irregular skin surface with pronounced scarring, predominantly deeply indented. approx. 2 cm large hyperpigmentation at the root of the nose.
Aplasia cutis congenita. general view: 1.5 x 1.2 cm in size, hairless, slightly sunken, yellowish-whitish area with shiny surface, existing since birth, unchanged for years except for size increase during physical growth.
Striae cutis distensae. older, whitish, differently long and wide, jagged, parallel or diverging atrophic stripes with slightly sunken and thinned skin.
Acne conglobata: symmetrically distributed, eminently chronic, inflammatory and melting papules and pustules as well as strong, retracted scar formation, with retention fluctuating in places.
Leprosy lepromatosa: stiffening of the fingers in a claw-like position. closure of the fist no longer possible. atrophy of the interosseous musculature (see following figure).
Lichen sclerosus extragenitaler: Progressive lichen sclerosus for 2 years with a clearly sunken scarring of the lower lip and chin; surrounding, flat, blurred, clearly consistent plaque with a red-white coloration in the chin area (here the clinical features of the lichen sclerosus are visible).
Pronounced livedo racemosa: Intermediate findings after 2 more years (period of clinical follow-up over a period of 8 years); extensive scar healing after therapy with high-dose venous immunoglobulin therapy (IVIG)
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