
Sarcoidosis of the skin D86.3
Sarcoidosis: chronic sarcoidosis without detectable organ involvement. Two to 1.5 cm large, anular, completely symptom-free, brown-red plaques with a smooth surface. The distribution pattern on the back of the hand is random.

Leprosy lepromatosa A30.50
Leprosy lepromatosa: advanced findings with numerous, almost symmetrically distributed, asymptomatic papules and nodules, no accompanying inflammatory reaction.

Amyloidosis systemic (overview) E85.9
Amyloidosis systemic: flat light brown, symptomless spots and plaques on both backs of the hands; recurrent fresh bleeding in the case of banal trauma.

Poems syndrome C90.2
POEMS syndrome: flat, even hyperpigmentation with "scleroderma-like" hardening and swelling of the forearm and back of the hand.

Nevus verrucosus Q82.5
Naevus verrucosus with bizarre arrangement of brownish papules and plaques along the Blaschko lines.

Verruciform epidermodysplasia B07.x
Epidermodysplasia verruciformis. 34-year-old female patient has had partly erythematous, partly brownish, hyperkeratotic papules in the area of the upper arms and hands since childhood; for some years now, there has been a two-dimensional confluence of the skin changes with complete spread to the palms of the hands. Currently, on both palms (also on the back of the hands and the sides of the fingers) there are partly individual, partly aggregated papules, which are aggregated on the palms to form a large, red, wart-like rough plaque.

Extrinsic skin aging L98.8
Chronic sun damage of the skin: dry, somewhat atrophic skin with solar lentigines, as well as a few precanceroses of the actinic keratosis type.

Nevus melanocytic (overview) D22.-
Naevus melanocytic: Large congenital completely unattractive melanocyticnaevus.

Lentigo solaris L81.4
Lentigo solaris: multiple, disseminated, a few millimetres to 1.5 cm in size, oval, roundish or bizarrely configured, sharply defined, yellow-brown to dark brown spots on the back of the hand of a 75-year-old man (convertible driver).

Lentigo maligna melanoma C43.L
Lentigo-maligna melanoma: Irregularly pigmented, bizarrely limited brown spot with a central elevation which is only detectable on palpation.

Atrophodermia idiopathica et progressiva L90.3
Atrophodermia idiopathica et progressiva. chronic stationary, map-like spread, brownish spots. the existing skin changes have developed within 2-3 years.

Becker's nevus D22.5
Becker nevus: hyperpigmented (border areas marked with arrows), hypertrichotic epidermal nevus, in a 16-year-old female patient. encircled: lichenified skin area. no complaints. therapy not necessary. hair could be depilated.

Xanthome eruptive E78.2
Xanthomas, eruptive: disseminated, partly also linearly arranged, 0.1-0.3 cm large, yellow-brown, flat raised, superficially smooth and shiny, firm papules in dense seeding in a 54-year-old patient with known hyperlipoproteinaemia type IV.

Nevus spilus L81.4
Naevus spilus, a light brown large pigmentation spot with splashes of dark pigmentation that has existed since birth (Lapwing's nevus).