Search Results for: peri-infundibulitis

Differential Diagnosis in Dermatopathology

Acne vulgaris, erythematous papule vs. Rosacea, erythematous papule

…begins as a suppurative folliculitis manifested clinically as pustules. It rapidly extends to become ulcers marked at their periphery by boggy tissue. The skin disease is associated commonly with inflammatory bowel disease, especially ulcerative…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

Images 10.39.1A: Infundibulitis, spongiotic, and periinfundibulitis + 10.39.1B: Predominance of lymphocytes in and around infundibula dilated by corneocytes = Fox-Fordyce disease Spongiosis in the wall of an infundibulum near the site where an…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…do in the context of the suppurative process is indicative of acne vulgaris. 10.1.2A: Pustular dermatitis, infundibular, and periinfundibulitis, granulomatous and fibrosing + 10.1.2B: Collections of neutrophils around a hair in a distorted…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…wit, acantholytic multinucleate epithelial cells, permit the diagnosis to be made accurately and with confidence. 10.47.9A: Periinfundibulitis, mixed-cell + 10.47.9B: Infundibula with ballooned keratocytes, many multinucleate necrotic cells with…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…kin surface is characteristic of keratosis pilaris and is noted palpably on palpation. 11.10.2A: Perivascular dermatitis and periinfundibulitis + 11.10.2B: A plug of cornified cells in a thinned infundibulum that in loci no longer in contiguity…

Histologic Diagnosis of Inflammatory Skin Diseases

Hair Follicles

…s but continues upward for a very short distance into the isthmus. What usually is referred to as perifolliculitis really is periinfundibulitis, affecting as it does the infundibulum mostly. At times, however, infiltrates of inflammatory cells not…

Histologic Diagnosis of Inflammatory Skin Diseases

Majocchi’s granuloma

…that is true only at the apogee of it; the condition begins as suppurative infundibulitis that, in time, becomes suppurative periinfundibulitis and, not uncommonly, suppurative folliculitis and perifolliculitis, eventually being associated with…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…mis and wiry bundles of collagen in haphazard array in company with a patchy lichenoid infiltrate of lymphocytes. 11.14.35A: Peri-infundibulosis and perifolliculosis + 11.14.35B: Lymphocytes around venules and in considerable number in infundibula…

Histologic Diagnosis of Inflammatory Skin Diseases

Rosacea

…ied by suppurative infundibulitis, they being seen clinically as papulopustules. It is likely that in rosacea, granulomatous periinfundibulitis is a consequence of leakage of contents of infundibula into the dermis. Rosacea is perplexing, not only…