Search Results for: folliculitis

Histologic Diagnosis of Inflammatory Skin Diseases

Eosinophilic folliculitis

…he dermis by an ingrown hair. The phenomena of infundibulitis and pseudoinfundibulitis are referred to universally as “folliculitis” and “pseudofolliculitis,” but those latter designations are wrong, and, therefore,…

A Clinical Atlas of 101 Common Skin Diseases

Lymphomatoid Papulosis

Macaulay first coined the diagnostic term “lymphomatoid papulosis” (LyP) in 1968, although the disease process was first published more than a decade earlier by Dupont and colleagues under the moniker “histiomonocytic reticulosis.” LyP is a rare…

A Clinical Atlas of 101 Common Skin Diseases

Pyoderma Gangrenosum

An inflammatory process that often 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…

Therapeutic Strategies in Dermatology

Acne Vulgaris: Treatment

Treatment Mild to moderate acne First-line therapy (comedonal acne only): topical retinoid First-line therapy (mild inflammatory acne): topical retinoid alone, topical retinoid + topical antimicrobial Topical retinoids are considered first-line…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Perforating Diseases?

…m, and perforating granuloma annulare. What do those so-called perforating diseases have in common? Very little. Perforating folliculitis, which is not a folliculitis but an epidermitis, i.e., an infundibulitis, is said to result from extrusion of…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…d conventionally, refers to an inflammatory process that involves the follicle preferentially. Reason: What is termed “folliculitis,” and, in particular, “suppurative folliculitis,” actually is a “suppurative…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…: Pustular dermatitis, infundibular, mixed-cell + 10.27.3B: Eosinophils predominate over neutrophils = Eosinophilic pustular folliculitis So-called eosinophilic pustular folliculitis likely is a suppurative infundibulitis joined soon by countless…

Histologic Diagnosis of Inflammatory Skin Diseases

Pattern Analysis in Historical Perspective

…dermatitis. D. Vasculitis. E. Intraepidermal vesicular and pustular dermatitis. F. Subepidermal vesicular dermatitis. G. 1) Folliculitis. 2) Perifolliculitis. H. Fibrosing dermatitis. I. Panniculitis. 1) Mostly septal. 2) Mostly lobular. In this…