Histologic Diagnosis of Inflammatory Skin Diseases

Cold panniculitis

…m there can extend to involve much of the panniculus adiposa. Cellulitis of the buccal mucosa caused by Haemophilus influenzae presents itself as a blue or red-purple plaque on the face in a febrile child who is less than 2 years of age. Findings hi…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ate of lymphocytes, neutrophils, and eosinophils = Erysipelas Cellulitis, of which erysipelas is the stereotype, is an example of phlegmonous inflammation, i.e., one in which neutrophils are scattered amid collagen bundles in the reticular dermis. No…

Dermatology Practical & Conceptual

From the Dermatologikum Hamburg: Quiz

…agnostic and bacterial infection, deep mycosis, or dissecting cellulitis of the scalp may be considered in the differential diagnosis. In correlation with the clinical picture of a large crusted lesion on the scalp, however, the changes have to be in…

Histologic Diagnosis of Inflammatory Skin Diseases

Gas gangrene

…mmun 1999;67(9):4902-7. Feingold DS. Gangrenous and crepitant cellulitis. J Am Acad Dermatol 1982;6:289–99. Fraenkel E. Über Gasphlegmonen. Hamburg: 1893. Klotz O, Holman WL. Infection by the gas bacillus in the coal mines. J Infect Dis 1911;9:251–64…

Histologic Diagnosis of Inflammatory Skin Diseases

Ecthyma gangrenosum

…and ulceration Variations clinical The disorder may simulate cellulitis in the form of plaques on which blisters may be situated. Laboratory confirmation Gram stain of a blister reveals Gram-negative bacilli. Culture produces growth of Pseudomonas a…

Dermatology Practical & Conceptual

Review of Practical Dermatopathology by Ronald P. Rapini

…s those where interstitial inflammation is the major finding. Cellulitis (12.3) Erythema marginatum (3.1 and 12.2) Granuloma annulare (7.1) Interstitial drug reaction (3.5) Interstitial mycosis fungoides (24.1) Sweet’s syndrome (3.7, usually mo…

Histologic Diagnosis of Inflammatory Skin Diseases

Hypodermitis sclerodermiformis

…sis dermatitis” and, moreover, diseases as different as cellulitis, allergic contact dermatitis, nummular dermatitis, psoriasis, and thrombophlebitis, when occurring in patients with marked venous insufficiency, have been grouped together under…