Search Results for: panniculitis

Histologic Diagnosis of Inflammatory Skin Diseases

Radiation dermatitis and panniculitis

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…

Histologic Diagnosis of Inflammatory Skin Diseases

Pancreatic panniculitis

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…

Histologic Diagnosis of Inflammatory Skin Diseases

Factitious dermatitis and panniculitis

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…

Histologic Diagnosis of Inflammatory Skin Diseases

α-1 antitrypsin deficiency

…an panniculitis in its acute first stage.” That both Patterson and Lever saw fit to compare α-1-antitrypsin deficiency panniculitis with Weber-Christian”s panniculitis seems to be revealing. Both are elusive conceptually and some…

Histologic Diagnosis of Inflammatory Skin Diseases

Subcutaneous T-cell lymphoma

…ixed-cell infiltrate throughout fat lobules, associated findings being erythrophagocytosis and karyophagocytosis. Cytophagic panniculitis is no more a panniculitis than is mycosis fungoides or leukemia that happens to involve fat lobules…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…s the case here, the patient may be either neurotic or psychotic. When the face becomes the object of factitious dermatitis, panniculitis, or fasciitis, almost always the patient is psychotic. 10.38.27A: Panniculitis, septal and lobular + 10.38.27B:…

Histologic Diagnosis of Inflammatory Skin Diseases

Behçet’s Disease

…hat are perivascular mostly. Differential diagnosis histopathologic Erythema nodosum is a granulomatous and fibrosing septal panniculitis, in contrast to the panniculitis of Behçet’s disease which, although septal mostly, is not granulomatous….

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…lobular + 10.35.2B: Foreign bodies (talc) in collections of neutrophils disposed in broad bands in fat lobules = Factitious panniculitis The clue to factitious panniculitis is apparent at scanning magnification, namely, a pattern of panniculitis

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…trabecula are widened markedly by the effects of granulomatous and fibrosing inflammation characteristic of that distinctive panniculitis. 10.33.8A: Panniculitis, septal and lobular + 10.33.8B: Histiocytes, some of them multinucleate, in company…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…polyarteritis nodosa. In short, the changes are those of one pattern histopathologic of different causes. Error: Cytophagic panniculitis is a panniculitis. Reason: The so-called panniculitis is a T-cell lymphoma seated in the subcutaneous fat….