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A Clinical Atlas of 101 Common Skin Diseases

Factitious Dermatitis

Dermatitis (and/or panniculitis) induced artificially and deliberately by a patient and characterized clinically by findings unlike those of any “authentic” disease, for example, by lesions that have sharply angulated margins, lesions that…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Subcutaneous Fat: Panniculitis

…a (Fig. 5.389 A&B). Figure 5.386 A&B. Stereotype of panniculitis, septal mostly: erythema nodosum. The archetype of panniculitis that is septal mostly is erythema nodosum, shown here at a late stage characterized by fibrosis in markedly wi…

Histologic Diagnosis of Inflammatory Skin Diseases

Factitious dermatitis and panniculitis

…ed of insulin into the subcutaneous fat with resultant lobular panniculitis, loss of adipocytes, and shrinkage of fat cells that remain. Differential diagnosis clinical Traumatic panniculitis (traumatic fat necrosis) typified by nodules and/or plaq…

Histologic Diagnosis of Inflammatory Skin Diseases

Cold panniculitis

…ual lesions Plaques and nodules Variations clinical Popsicle panniculitis develops at angles of the mouth and in cheeks of children who chew ice or suck on Popsicles. Equestrian panniculitis (riders of motorcycles, too) occurs in the upper-outer…

A Clinical Atlas of 101 Common Skin Diseases

Lymphomas (Other Than Mycosis Fungoides and Lymphomatoid Papulosis)

Malignant neoplasms of B-lymphocytes especially that present themselves usually as papules, nodules, and tumors, sometimes solitary but at other times numerous, and often in clusters on any anatomic site. When “primary,” B-cell lymphomas o…

Therapeutic Strategies in Dermatology

Erythema Nodosum: Overview

Overview Erythema nodosum is a reactive inflammatory septal panniculitis produced by multiple agents and underlying conditions. The most important consideration in the management of erythema nodosum is to determine and treat the cause. In children,…

Therapeutic Strategies in Dermatology

Erysipelas/Cellulitis: Treatment

Treatment First-line treatment: In all cases, the therapeutic strategy is to eliminate the pathogenic microorganism using an effective antimicrobial agent. Penicillin antibiotics remain first-line for erysipelas. There is sparse evidence supportin…

Therapeutic Strategies in Dermatology

Erysipelas/Cellulitis: Initial Evaluation

Initial Evaluation Erysipelas Cellulitis Differential diagnosis Deep vein thrombosis Venous stasis dermatitis Staphylococcal scalded skin syndrome Leukocytoclastic vasculitis Panniculitis

A Clinical Atlas of 101 Common Skin Diseases

Lupus Erythematosus

An inflammatory process that expresses itself in the skin in protean ways that are variations on a basic pathologic theme, and includes evanescent patches on the face (“butterfly blush”), scaly papules and plaques that resolve with atrop…

A Clinical Atlas of 101 Common Skin Diseases

Pernio

An inflammatory process that involves the acra, in particular fingers and toes, and sometimes the thighs with bluish red papules and nodules, which invariably is induced by cold. Chilblain is a synonym for pernio, which usually represents lupus eryt…

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