
Circumscribed scleroderma L94.0
Circumscribed scleroderma (type Atrophodermia idiopathica et progressiva ): since about 2-3 years first appearing, since then size progressive, large brown, little indurated, non-symptomatic spots in the area of the trunk in a 23-year-old female patient.

Maculopapular cutaneous mastocytosis Q82.2
Urticaria pigmentosa: General view: about 0.5-1.0 cm large, disseminated, roundish, brownish-red spots. Only when rubbed, the spots redden more strongly with accompanying itching. Increased reddening and itching even in warm showers or baths.

Melanotic spots of the mucous membranes L81.4

Atrophodermia idiopathica et progressiva L90.3
Atrophodermia idiopathica et progressiva: Large, red, confluent, barely palpable, smooth, sharply defined, symptom-free patches/plaques that slowly expand over months.

Melanodermatitis toxica L81.4
melanodermatitis toxica. chronic stationary (no growth dynamics), large, blurred, symptomless (only cosmetically disturbing), brown, spots. probably chronic, photoxic dermatitis due to frequent use of "refreshing tissues". DD. Chloasma.

Neurofibromatosis peripheral Q85.0
Neurofibromatosis peripheral: Café au lait spots in neurofibromatosis type I.

Maculopapular cutaneous mastocytosis Q82.2
Urticaria pigmentosa: about 0.5-1.0cm large, disseminated, oval or round, brownish-red spots. only when rubbed, increased reddening of the spots with accompanying itching. also during warm showers or baths increased reddening and clearly palpable elevation of the lesions. Darier phenomenon can be triggered (see neck on the right, here extensive reddening with slight itching, after rubbing this area).

Melanonychia striata L60.8
Melanonychia striata longitudinalis (detailed picture): approx. 0.4 cm wide, dark brown strip of the nail; nail fold with distinct paraungual rim; especially malignant melanoma of the nail root.

Addison's disease E27.1
Addison's disease: grayish-brownish mucous membrane pigmentation of the gingiva in a 22-year-old man.

Incontinentia pigmenti (Bloch-Sulzberger) Q82.3
Incontinentia pigmenti, type Bloch-Sulzberger, garland-shaped pigmentation on the forearm along the Blaschko lines in a 10-month-old girl.

Nevus melanocytic (overview) D22.-
Nevus, melanocytic. Congenital melanocytic nevus of the spilus nevus type

Melanotic spots of the mucous membranes L81.4
Congenital (familial) lentiginosis of red lips, lip and oral mucosa, especially Peutz-Jeghers syndrome

Erythema dyschromicum perstans L81.02
Erythema dyschromicum perstans. clinical picture existing for months. initially small spots of brown-red with little increase in consistency, later large, steel to slate grey, smooth spots and plaques of the skin. no medication history.

Notalgia paraesthetica G58.8
Notalgia paraesthetica:interval-like itching, also burning, blurredly limited hyperpigmentation, known for several months; the itching is answered by prolonged (lustful) rubbing on the edge of the door.