Skin Disorders Guide

Diagnostic Hallmarks

Distribution - sun-exposed portions of the face and ears
Occurrence against a background of sun-damaged skin
Rolled border, translucent appearance

Clinical Presentation
Basal cell carcinomas appear as smooth-smfaced, skin-colored, somewhat translucent (”pearly”) papules. Lesions 4-6 mm in size are flat-topped with rounded or rolled shoulders. Those 6-8 mm in diameter usually show a central dimpling. Larger lesions [...]

Diagnostic Hallmarks

Distribution: face and legs (flat warts); genitalia and perirectal area (genital warts)
Tendency for clustering or confluent growth when more than one is present

Clinical Presentation
Genital warts (condylomata acuminata, venereal warts) and flat warts lack visible or palpable surface keratin, and both demonstrate a marked tendency for clustering and a lesser tendency for confluent growth.
Genital warts [...]

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Diagnostic Hallmarks

Distribution: cheeks, arms, legs, and groin (infants), feet and antecubital and popliteal fossae (children, adolescents), hands, feet, ankles and groin (adults)
Presence of the itch-scratch cycle
Minor Criteria - atopy, xerosis, keratosis pilaris, pityriasis alba, and two prominent lower eyelid folds

Clinical Presentation

The distribution pattern, appears to be determined by irritant factors that lead to [...]

Diagnostic Hallmarks

Distribution: groin and other intertriginous areas
Satellite papules and pustules
KOH preparation and fungal culture

Clinical Presentation
Candidiasis of intertriginous skin occurs as poorly marginated, bright red plaques with satellite papules and pustules scattered around the periphery of the main lesion. In some cases, pustules may also be found studded over the surface of the main plaque. The [...]