
Guttate psoriasis L40.40
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).

Seborrheic dermatitis of adults L21.9
Dermatitis, seborrhoeic: 62-year-old patient with a negative family history of psoriasis. recurrent HV on the trunk for years. no itching. multiple, chronically inpatient, figured, borderline, sometimes itchy, moderately scaly, clearly borderline hardly elevated plaques.

Kaposi's sarcoma (overview) C46.-
Kaposi's sarcoma epidemic: Dissemination of the angiosarcoma in the skin. Characteristic arrangement of the foci in the cleavage lines. In places the foci merge into larger plaques.

Prurigo simplex subacuta L28.2
Prurigo simplex subacuta: 54-year-old female patient with a clinical picture that has been progressive for two years. severe, uncontrollable itching. the rough papules up to 0.8 cm in size with marginal hyperpigmentation are centrally eroded or ulcerated or even covered with older crusts (centre of the figure). a typical picture of itchy Prurigo simplex subacuta are the scratch artefacts limited to prurigo lesions.

Incineration T30.0
2nd degree burn (Combustio bullosa): Erythema followed by extensive subepidermal blistering. Beginning incrustation. Painfulness.

Pemphigus vulgaris L10.0
Pemphigus vulgaris: multiple, chronic, since 3 years intermittent, symmetric, trunk-accentuated, easily injured, flaccid, 0.2-3.0 cm large, red spots, plaques and pallor, confluent to, weeping and crusty surfaces; extensive infestation of the oral mucosa and capillitium.

Solar dermatitis L55.-
Dermatitis solaris: painful erythema and blistering, clearly marked on sunlight-exposed areas. Skin peels off in stripes. This was preceded by several hours of sun exposure.

Dermatitis herpetiformis L13.0
dermatitis herpetiformis. multiple, itchy, scratched excoriations on the buttocks of a 15-year-old patient. the scratched excoriations replaced grouped blisters that had appeared a few days earlier. overall, the disease has existed for several months and shows a chronically recurrent course.

Purpura fulminans D65.x
Purpura fulminans: Purpura fulminans beginning in the abdominal region in the context of E. coli sepsis in a 55-year-old man (lethal outcome).

Photoallergic dermatitis L56.1
Eczema, photoallergic. 78-year-old female patient. Taking diuretics because of lymphedema. After first exposure to sunlight in spring, blurred erythema, reddened papules as well as flat, scaly plaques (sternal area) appeared in light-exposed areas.

Primary cutaneous marginal zone lymphoma C85.1
Primary cutaneous marginal zone lymphoma: livid to erythematous plaques in a 64-year-old female patient, which appeared for the first time 12 monthsago . Clearly indurated efflorescences on otherwise apparently free skin. No scratch excoriations, no scaling, no pruritus.

Pemphigus chronicus benignus familiaris Q82.8
Pemphigus chronicus benignus familiaris: multiple, chronically dynamic (changing course), little itchy, sharply defined, red, rough, scaly, also erosive plaques

Contagious mollusc B08.1
Molluscum contagiosum: multiple Mollusca contagiosa, here grouped, indicated linearly arranged, detailed view.

Lupus erythematodes chronicus discoides L93.0
Lupus erythematosus chronicus discoides: chronic cutaneous lupus erythematosus that has been present for several years, progressive, disseminated, scarring, chronic cutaneous lupus erythematosus, no evidence of systemic involvement (no ANA, no DNA antibodies).

Lyme borreliosis A69.2
Lyme borreliosis: erythema chronicum migrans, which has been present for several weeks and continues to grow