Search Results for: fibrin

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…thematosus. 10.63.29A: Perivascular dermatitis, lymphocytic, mostly + 10.63.29B: Edema of the papillary dermis, subepidermal fibrin, an epidermis thinned focally, and ortho- and parakeratosis = Lupus erythematosus, discoid The prominent edema and…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…nulomatous + 10.93.2B: Epithelioid histiocytes aligned in a palisade around zones of degenerated collagen mostly but also in fibrin = Rheumatoid nodule Although fibrin usually forms the core of the palisaded granuloma typical of rheumatoid nodule,…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ection of tissue. 10.43.23A: Nodular dermatitis + 10.43.23B: Histiocytes in a palisade around deposits of mucin and hints of fibrin, as well as lymphocytes around venules = Granuloma annulare Mucin is detectable in sections stained by hematoxylin…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…id (like a lichen), and chancroid (like a chancre); epithelioid cells are plump oval, unlike those of most epithelial cells, fibrinoid is fibrin, sarcoid is a systemic granulomatous disease that may affect skin and subcutaneous fat, lichenoid refers…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…IS [L. vasculum (small vessel + Gk. –itis (inflammation of)]: Small-vessel vasculitis, fully developed, is typified by fibrin in the wall of venules (and rarely arterioles) and/or thrombi in the lumen of them in the context of an infiltrate of…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…nd septal, suppurative + 10.35.3B: Large collections of neutrophils in fat lobules associated with degeneration of collagen, fibrin, and evidences of fat necrosis, i.e., fat “microcysts” and membranous fat necrosis, as well as fibrosis…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…arthritis to acute myelogenous leukemia. These are not the changes of leukocytoclastic vasculitis because of the absence of fibrin from the wall of venules. 10.102.5A: Nodular and diffuse dermatitis, superficial, neutrophils mostly + 10.102.5B:…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…; some are those of severe stasis. 10.62.4A: Vasculitis, small-vessel type, mixed-cell and panniculitis, lobular + 10.62.4B: Fibrin in the wall and thrombi in the lumen of venules in company with neutrophils mostly, but also lymphocytes = Livedo…