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Histologic Diagnosis of Inflammatory Skin Diseases

Erythema annulare centrifugum

Erythema annulare centrifugum Synonyms Erythema perstans Erythema gyratum perstans Erythema figuratum perstans Presentation stereotypical Age and sex Middle-aged or older adults of both sexes; children sometimes Distribution of lesions Any part of t…

Histologic Diagnosis of Inflammatory Skin Diseases

Pityriasis rosea

Pityriasis rosea Synonyms Pityriasis circiné Pityriasis disseminé Pityriasis marginée et circiné Roseola annulata Roseola squamosa Presentation stereotypical Age and sex Usually young to middle-aged persons of both sexes; women especially Distributi…

Histologic Diagnosis of Inflammatory Skin Diseases

Pemphigus foliaceus

Pemphigus foliaceus Presentation stereotypical Age and sex Adults usually and of both sexes Distribution of lesions Localized to photodistribution in pemphigus erythematosus; widespread in pemphigus foliaceus Individual lesions Macules, patches, fla…

Differential Diagnosis in Dermatopathology

Discussions

…icarial, often become vesicular, and of-times are covered by a crust. Because the lesions are so pruritic, evidences of excoriation in the form of erosions, ulcerations, and hemorrhagic crusts are expected. In contrast, papules of lymphomatoid papulo…

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