Acrodermatitis chronica atrophicans. general view: livid, unscnarf limited, brownish-red spots on the left hand. skin in the area of the ball of the thumb atropical, finely wrinkled, with fine-lamellar scaling.
Pustulose, subcorneal. 6-year-old boy with infantile form of the disease. Craniocaudal erupted pustules after fever attack, disseminated over the whole integument. Whole integument almost completely reddened, flat flat infiltrations of the skin with fine lamellar scaling.
Dermatitis medusica: A few minutes after the contact event, representation of linear, strongly consistency-multiplied, flat-exposed plaque with scab and vesicle formation (illustration was kindly provided by Dr. Heike Luther/Essen).
Dyskeratosis follicularis: Infestation of the palms of the hands; in central areas of the palm flat, common keratoses, at the ball of the thumb about 0.1-0.2 cm large, glassy papules.
Parapsorisis en petites plaques: completely symptom-free red (hardly palpable), slightly scaly plaques; recurrent course for years; improvement in the summer months or under UV therapy.
psoriasis guttata. small, exanthematic form of psoriasis after streptococcal infection. only slight scaling (due to pre-treatment). note the indicated linear patterns (koebner phenomenon). the auspitz phenomenon (finest punctiform bleeding after removal of the uppermost scaly layer with a wooden spatula) can still be triggered even in these pre-treated lesions and is therefore an excellent diagnostic sign (best triggered in the small papules).
Acne inversa: severe clinical, therapy-resistant finding in a 52-year-old female patient. existing since the age of 20. conspicuous sausage-shaped scar strands.
melanoma malignes amelanotic: since early childhood a pigment mark is known at this site. continuous growth for several years. for half a year extensive ulceration of the node. no significant symptoms.
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