
Atopic dermatitis (overview) L20.-
Bending atopic eczema: Skin lesions in a 20-year-old girl with intermittent course since the age of 4 years. Pollinosis (hazelnut, birch) known. In the area of the large joint bends accentuated, blurred, extensive, reddened, moderately itchy plaques. Skin field coarsened (lichenification).

Erythema anulare centrifugum L53.1

Lichen planus classic type L43.-
Lichen planus (classic type): discrete expression, for several weeks, red, itchy, polygonal, in places confluent, red, smooth, shiny papules. no scratching effects.

Cold urticaria L50.21
Cold urticaria. solitary, acute, on the right arm localized, approx. 5.0 x 7.0 cm measuring, flat, sharply defined, flatly elevated, skin-coloured, consistency increased, strongly itching wheals in a 20-year-old student. Comparable skin lesions were noticed on the whole integument during swimming. These disappeared after a few hours.

Porphyria cutanea tarda E80.1

Acrodermatitis continua suppurativa L40.2
Acrodermatitis continua suppurativa, typical clinical picture. psoriasis known for many years. picture of acrodermatitis continua suppurativa continuously progressive for 1 year.

Erythema multiforme, minus-type L51.0
erythema multiforme: detailed picture: suddenly appeared, for 4 days existing, itchy, disseminated exanthema with cocard-like plaques. the skin changes appeared shortly after the beginning of antibiotic therapy for urinary tract infection. here the finding on the back of the hand. s. isomorphism (koebner phenomenon).

Contact dermatitis allergic L23.0

Pemphigoid bullous L12.0
Pemphigoid bullous: Drug-induced bullous pemphigoid (rivaroxaban) (extracted from: Ferreira C et al. 2018)

Dermatomyositis (overview) M33.-
Dermatomyositis (V-sign): Characteristic cutaneous symptoms of the backs of hands and fingers, almost proving the diagnosis of "collagenosis", with reddish-livid papules arranged in stripes, which merge to form flat plaques in the area of the end phalanges. Painful nail fold keratoses with parungual erythema are sometimes seen. Such papules arranged on the stretching side are also found in SLE and mixed collagenosis, rarely once in lichen planus.

Calcinosis cutis (overview) L94.2
Calcinosis dystrophica disseminated: reddened nodules with painful central ulcerations and visible calcifications; the changes occurred bilaterally in the underlying progressive systemic scleroderma.

Psoriasis vulgaris L40.00
Psoriasis vulgaris Psoriasis palmaris with streaky and flat, reddened plaques and coarse lamellar scaly deposits.

Hand-foot-mouth disease B08.4
hand-foot-mouth disease: since about1 week, painful, blisters, pustules and papules on hands and feet. single aphthous lesions on palate and lip mucosa. about 2 weeks before, unspecific flu-like prodromas.