
Rowell's syndrome L93.1
Rowell's syndrome: acute "multiform" exanthema in subacute cutaneous lupus erythematosus.

Vemurafenib
Side effects of vemurafenib: Erythroderma with pronounced keratosis areolae mammae (acquisita) under vemurafenib therapy.

Pemphigoid gestationis O26.4
Pemphigoid gestationis. itchy, since 4 weeks existing exanthema with multiple, generalized, symmetric, truncated, large red plaques with isolated, bulging blisters. picture reminds of an erythema exsudativum multiforme.

Primary cutaneous follicular lymphoma C82.6
Primary cutaneous follicular center lymphoma: chronically active, increasing for 12 months, localized on the trunk and upper extremities, disseminated, 0.3-0.7 cm in size, asymptomatic, hemispherical, firm, smooth, red papules and nodes.

Lichen planus classic type L43.-

Dermatitis herpetiformis L13.0
Dermatitis herpetiformis: chronically recurrent course of the disease. persists for about 3 years. disseminated, burning, partly also stinging urticarial papules, papulo vesicles and erosions.

Pityriasis rosea L42
Pityriasis rosea: Collerette scaling: For Pityriasis rosea pathognomonic form of scaling with exactly one ring of fine, slightly raised, whitish scaling about 1-2mm indented from the lateral edge of the reddish plaque.
Note: this form of "keratolytic" desquamation results from the repulsion of superficial, parakeratotic horn lamellae.

Pemphigus erythematosus L10.4
Pemphigus erythematosus. close-up: reddened papules and plaques with crusty scale deposits.

Gianotti-crosti syndrome L44.4
Acrodermatitis papulosa eruptiva infantilis. disseminated standing, partially eroded papules in an 18-month-old infant. HV only to be assessed in the context of the overall picture.

Mallorca acne L70.8
acne, majorca acne. single papules. round papules with ectatic papillary capillaries. in the surroundings numerous equally sized round sweat gland ostia in sun-tanned skin.

Early syphilis A51.-
Syphilis early syphilis: papular syphilide. No itching. Generalized lymph node swelling. Syphilis serology positive.

Parapsoriasis en plaques large L41.4
Parapsoriasis en plaques,grandes plaquesForm (Parapsoriasisen grandes plaques): completely symptom-free, yellow-brown (purpura pigmentosa-like), sharply defined spots; only when the skin is wrinkled is a cigarette-paper-like pseudoatrophic architecture of the skin surface discernible (important diagnostic sign!).

Lymphomatoids papulose C86.6
Lymphomatoid papulosis. reflected light microscopy (detail): In the initial phase of a papule eruption a concentric or radial pattern of punctiform or garland-like vascular ectasia is visible. partially brownish background pigment (oxidative haemoglobin degradation).

Granuloma anulare disseminatum L92.0
Granuloma anulare disseminatum. general view: Non-painful, non-itching, disseminated, large plaques on the abdomen of a 43-year-old female patient. no diabetes mellitus.