Search Results for: scars

Histologic Diagnosis of Inflammatory Skin Diseases

Burns

…burns because that layer consists of dead keratocytes, i.e., corneocytes, incapable of responding to any stimulus. Atrophic scars induced by a burn, granuloma inguinale, chronic radiodermatitis, and lupus vulgaris are loci with potential for…

Histologic Diagnosis of Inflammatory Skin Diseases

Elastic Fibers

…y crisscross the dermis on journeys marked by curves continuously. Elastic fibers are absent from scarring processes such as scars, keloids, and dermatofibromas and are decreased greatly, or are absent altogether, in anetodermas, a feature that…

Histologic Diagnosis of Inflammatory Skin Diseases

Lupus vulgaris

…1; hue. Each apple-jelly papule represents a discrete granuloma of lupus vulgaris. As the process advances outward, atrophic scars are left behind, a sign that the host has triumphed, at least in that locus, over the organisms, none being present in…

Histologic Diagnosis of Inflammatory Skin Diseases

Selection of the Site

…petiginization. Ulcers may heal with scar. Clinicians are advised not to perform a biopsy on excoriated lesions, indubitable scars, or postinflammatory pigmentary changes because those lesions usually provide no clue to the exact nature of the…

Histologic Diagnosis of Inflammatory Skin Diseases

Collagen

…an expected finding in some kinds of inflammatory diseases of the skin, e.g., those that occur secondary to trauma, such as scars, keloids, and dermatofibromas; those marked by extensive suppuration and subsequent degeneration of collagen, such as…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ration, granulomatous inflammation, and extensive fibroplasia, the latter manifested clinically as a scar. The appearance of scars that follow on suppurative infundibulitis of acne vulgaris varies; it ranging from “ice pick” atrophic…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Erythema Dyschromicum Perstans?

…entary alteration with regard to identification of cause based on changes histopathologic is not unique. It is true also for scars, keloids, and dermatofibromas, all of which are fibrosing inflammatory processes that examination by conventional…

Clinical Case Studies

Extensive Actinic Damage

…ographic surgical procedures for basal cell carcinoma as well as squamous cell carcinoma with resultant well-healed surgical scars on his forehead, nose, and cutaneous upper lip. On examination, numerous scaly erythematous plaques were evident on…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Fibromatoses?

…acture, Ledderhose’s disease, and Peyronie’s disease are fibrosing inflammatory processes (peculiar hypertrophic scars), Hügel’s plaque-like dermal fibromatosis is a connective tissue nevus (of myofibrocytes), and desmoid tumor is…

Differential Diagnosis in Dermatopathology

Acne vulgaris, erythematous papule vs. Rosacea, erythematous papule

Conditions caused by infection with different strains of herpesvirus and typified when fully developed by tense vesicles, herpes simplex consisting of grouped vesicles on an erythematous base, zoster being made up of vesicles, sometimes hemorrhagic…