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A Clinical Atlas of 101 Common Skin Diseases

Mucha-Habermann Disease

An inflammatory process in which lesions may erupt (pityriasis lichenoides et varioliformis acuta) and evolve rapidly from erythematous macules and papules to become purpuric papules, papulovesicles that may be hemorrhagic, ulcers, eschars, and, eve…

Therapeutic Strategies in Dermatology

Oral Hairy Leukoplakia: Key Points

Key Points OHL is caused by infection with Epstein-Barr virus (EBV), and usually presents as corrugated white plaques of the lateral tongue. OHL is a clinical manifestation of immunosuppression and classically presents in the setting of HIV infecti…

A Clinical Atlas of 101 Common Skin Diseases

Erythema Multiforme

An inflammatory process that tends to involve mucous membranes, as well as skin, and of the latter the acra especially. The stereotypical presentation is lesions composed of concentric rings (“iris” and “target” type). The co…

A Clinical Atlas of 101 Common Skin Diseases

Allergic Contact Dermatitis

Allergic contact dermatitis is an inflammatory process induced by direct contact of the skin of a sensitized individual to an allergen. Within hours, red macules or patches develop that usually evolve rapidly, sometimes through an intermediate stage…

A Clinical Atlas of 101 Common Skin Diseases

Herpes Simplex, Zoster, and Varicella

Conditions caused by infection with different strains of herpesvirus and typified when fully developed by tense vesicles, herpes simplex consisting of grouped vesicles on an erythematous base, zoster being made up of vesicles, sometimes hemorrhagic…

A Clinical Atlas of 101 Common Skin Diseases

Phototoxic Dermatitis

An inflammatory process that represents the combined effects of a toxic substance applied topically or administered systemically in combination with the effects of ultraviolet light, the result being a caricature of sunburn. The lesions consist of e…

A Clinical Atlas of 101 Common Skin Diseases

Septic Vasculitis

A small-vessel vasculitis characterized clinically by vesiculopustules on an erythematous base, purpuric macules and papules, and hemorrhagic bullae, and histopathologically by thrombi within venules, a consequence of sepsis….

A Clinical Atlas of 101 Common Skin Diseases

Fixed Drug Eruption

Circular orange-red-blue macule(s) or patch(es) that often becomes a papule(s) or plaque(s) and vesiculates, healing with hyperpigmentation, and that occurs repeatedly at the very same cutaneous and/or mucous membrane site(s), especially the genital…

A Clinical Atlas of 101 Common Skin Diseases

Scabies

An inflammatory process caused by the acarus Sarcoptes scabiei and consisting of papules, papulovesicles, papulopustules, and vesicles, some arranged in linear or curvilinear tracks (burrows). Sometimes nodules are present, especially in the interdi…

A Clinical Atlas of 101 Common Skin Diseases

Livedo Vasculitis and Livedo Reticularis

A type of small-vessel vasculitis (venulitis) of the skin, occurring especially in the vicinity of the ankle, characterized at first by purpuric macules and patches that, in time, may become hemorrhagic blisters that ulcerate and heal with white, st…

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