Search Results for: ulcer

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Primary and Secondary Lesions?

…esions, by contrast, are said to be scales, crusts, erosions, ulcers, excoriations, lichenification, and fissures. Regrettably, the concept of primary and secondary lesions is flawed beyond redemption. All so-called primary lesions of the skin can be…

Histologic Diagnosis of Inflammatory Skin Diseases


…lation of that relationship. 10.20.27A: Fibrosing dermatitis, ulcerated and crusted + 10.20.27B: Sclerosis in the center of the dermal component and a proliferation of fibrocytes in company with coarse bundles of collagen at the periphery of it + 10….

Histologic Diagnosis of Inflammatory Skin Diseases

Atopic dermatitis

…surfaces, face, feet, and hands Individual lesions Erosions, ulcerations, crusts, lichenified papules, plaques, and nodules, and fissures in plaques at times; hemorrhagic crusts of excoriations often are disposed in linear array Course Lesions subsi…

Histologic Diagnosis of Inflammatory Skin Diseases

Crohn’s disease

…Vesiculopustules and tender erythematous nodules that tend to ulcerate and heal with a scar Variations clinical Cutaneous manifestations of Crohn’s disease, all of them characterized by neutrophils, range from urticaria to pyoderma gangrenosum,…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…3. Granulation tissue present only beneath the surface of an ulcerated lesion 4. Muscle-containing “feeder” blood vessel spirals through the reticular dermis from the base of the lesion in the subcutaneous fat 4. No “feeder”…

Histologic Diagnosis of Inflammatory Skin Diseases

Factitious dermatitis and panniculitis

…ound, sharply angulated, or bizarre-shaped Individual lesions Ulcers most often, but also papules and nodules Course Protracted Variations clinical Paraffinomas appear as nodules that result from injection of wax into the reticular dermis and subcuta…

Dermatology Practical & Conceptual

Infectious cancers

…prove their point that H. pylori bacteria resulted in gastric ulcers (and later gastric carcinoma). There were successful investigators who associated an infectious agent with cancer, who included the likes of: Denis P. Burkitt (Burkitt’s lymphoma) P…