
Linea nigra L81.9
Linea fusca. sharply defined, linear, brown, smooth, non-pruritic hyperpigmentation in a 28-year-old pregnant woman in 24th week of pregnancy. the line runs from the symphysis pubica upwards to the epigastrium. the clinical picture is diagnostically conclusive.

Addison's disease E27.1
Addison's disease: homogeneous hyperpigmentation of the back in a 35-year-old man; especially accentuated on the lateral parts of the back and in the lumbar region. The patient made a statement typical for Addison's disease: "Last summer's suntan did not recede as usual" The transverse light stripes of the lumbar region correspond in appearance to striae cutis distensae.

Lentigo solaris L81.4
Lentiginosis as a result of years of excessive UV irradiation (detailed picture).

Pityriasis versicolor (overview) B36.0
Pityriasis versicolor: like scattered, irregularly configured, symptomless brown spots.

Extrinsic skin aging L98.8
Chronic photo-aging of the skin: multiple irregularly configured pigment spots of varying colour intensity; furthermore, splashlike depigmentation.

Erythema dyschromicum perstans L81.02
Erythema dyschromicum perstans. 54-year-old male. Large grayish-brown patches and spots on the trunk and neck. No itching. No drug history.

Maculopapular cutaneous mastocytosis Q82.2
Urticaria pigmentosa (overview): Adult form of Urticaria pigmentosa (erythroderma). With a history of many years, continuous increase in spot density. The inlet shows the confluence of numerous red spots.

Neurofibromatosis (overview) Q85.0
Type I Neurofibromatosis, peripheral type or classic cutaneous form. Since puberty slowly increasing formation of these soft, skin-coloured or slightly brownish, painless papules and nodules. Several café-au-lait spots.

Extrinsic skin aging L98.8
Chronic photo-ageing of the skin: moderately pronounced photo-ageing of the skin; in addition to an extensive base tan, irregularly configured pigment spots; further splashes of depigmentation.

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.

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.

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

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.

Maculopapular cutaneous mastocytosis Q82.2
Urticaria pigmentosa: Close-up: about 0.5-1.0 cm in size, disseminated, oval or round, brownish-red spots; "Darier phenomenon" can be triggered; here visible by the red colour in places of slight mechanical irritation.

Lentigo solaris L81.4
Lentigo solaris: Multiple, sharply defined light brown maculae in the area of the shoulders after chronic UV exposure