Histology: In common acquired melanocytic nevi, the melanocytes are arranged symmetrically in a lateral fashion. They are arranged in nests. The nested melanocytes do not have the typical dendritic appearance…
Multiple blue nevi can be seen in the Carney complex, also known as the NAME or LAMB syndrome. This complex of clinical findings includes multiple blue nevi, lentigines, ephelides, myxomas,…
Ecchymosis/Actinic Purpura Jeffrey P. Callen (ICD-9 459.89)/(ICD-9 287.2) Symptoms and Signs Ecchymoses are asymptomatic or tender nonpalpable hemorrhages, usually 1 cm or more in diameter. They usually follow trauma, even…
Kaposi’s Sarcoma Jeffrey P. Callen (ICD-9 176.0) Symptoms and Signs No specific symptoms are associated with Kaposi’s sarcoma (KS). KS occurs in two forms—one related to aging (classic form) and…
Xanthelasma John T. Crissey (ICD-9 272.2) Symptoms and Signs Asymptomatic flat or slightly raised, yellow to yellow–orange plaques appear on the eyelids, particularly on the nasal side (Fig. 57-1). Small…
Keloid and Hypertrophic Scar John T. Crissey (ICD-9 701.4) and (ICD-9 701.4) Symptoms and Signs Both hypertrophic scars and keloids have a tendency to itch; keloids are sometimes tender and…
Chondrodermatitis Nodularis Chronica Helicis John T. Crissey (ICD-9 380.0) Signs and Symptoms Tenderness is the hallmark of chondrodermatitis nodularis chronica helicis (CNCH). Patients pull away when the lesion is touched,…
