Search Results for: suppuration

Histologic Diagnosis of Inflammatory Skin Diseases

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…changes pictured do not conform precisely, or even closely, to any well-defined panniculitis. That, as well as the prominent suppuration in a pattern bizarre, compels to a diagnosis of panniculitis induced factitiously. A diagnosis of factitious…

Histologic Diagnosis of Inflammatory Skin Diseases

Foreign body reaction

…by the presence of individual cornified cells (squames) in multinucleate histiocytes and of hair shafts either in a zone of suppuration or fibrosis, or surrounded by histiocytes. Splinters display a “stepladder” pattern typical of…

Histologic Diagnosis of Inflammatory Skin Diseases

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…about whether the primary disease in the pancreas is pancreatitis or carcinoma. 10.73.2A: Panniculitis, lobular + 10.73.2B: Suppuration at the periphery of zones of granular fat necrosis and calcification of necrotic fat = Pancreatic panniculitis,…

Histologic Diagnosis of Inflammatory Skin Diseases

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…10.17.7B: Innumerable organisms with a round, gray nucleus and a clear capsule situated at the periphery of patchy zones of suppuration = Cryptococcosis The capsule of cryptococcosis is demonstrated better by PAS, as shown in the section pictured…

Histologic Diagnosis of Inflammatory Skin Diseases

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…pustular psoriasis. 10.22.5A: Pustular dermatitis, infundibular + 10.22.5B: Hyphae in the cornified layer = Dermatophytosis Suppuration that begins in an infundibulum may extend upward and come to repose beneath the stratum corneum, the result…

Histologic Diagnosis of Inflammatory Skin Diseases

Sarcoidosis

…who have indisputable sarcoidosis. In our experience, granulomatous dermatitides that are sarcoidal, tuberculoid, or free of suppuration or necrosis fail consistently to reveal an infectious agent, no matter how many specialized stains are employed…

Histologic Diagnosis of Inflammatory Skin Diseases

Erythema nodosum leprosum

…ormed lesions of erythema nodosum leprosum, foamy histiocytes are dispersed widely in lobules. Erythema nodosum is devoid of suppuration, whereas erythema nodosum leprosum is typified by zones of suppuration. The infiltrate of inflammatory cells in…