Histologic Diagnosis of Inflammatory Skin Diseases

Eosinophilic folliculitis

…iations clinical Ofuji’s disease (eosinophilic pustular folliculitis) Papular dermatitis of HIV is a variant morphologic of eosinophilic pustular folliculitis. Step sections through papules often reveal suppurative infundibulitis rich in eosin…

Differential Diagnosis in Dermatopathology

Perforating folliculitis vs. Elastosis perforans serpiginosa

Infundibulitis, usually a suppurative inflammatory process that involves infundibula, is either noninfectious, as in the case of pustules of acne vulgaris, or infectious, as in the case of pustules caused by Staphylococcus aureus. In contrast, pseud…

Histologic Diagnosis of Inflammatory Skin Diseases

"Perforating folliculitis" of chronic renal disease

“Perforating folliculitis” of chronic renal disease Comment This condition, essentially a suppurative infundibulitis, is vexing to patients practically and to physicians conceptually. It is troubling to patients because the suppurative i…

Histologic Diagnosis of Inflammatory Skin Diseases

"Folliculitis" (Infundibulitis)

Infundibulitis, usually a suppurative inflammatory process that involves infundibula, is either noninfectious, as in the case of pustules of acne vulgaris, or infectious, as in the case of pustules caused by Staphylococcus aureus. In contrast, pseud…

Histologic Diagnosis of Inflammatory Skin Diseases

Eosinophilic folliculitis

Infundibulitis, usually a suppurative inflammatory process that involves infundibula, is either noninfectious, as in the case of pustules of acne vulgaris, or infectious, as in the case of pustules caused by Staphylococcus aureus. In contrast, pseud…

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 bowel…

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…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Perforating Diseases?

…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 contents suppurative of an infundibulum into the dermis. When th…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Pustular Dermatitis

…ure 5.310 A&B. Suppurative infundibulitis, not suppurative folliculitis! Neutrophils present to overflowing in an infundibulum qualifies as suppurative infundibulitis, not as suppurative folliculitis, the infundibulum being part of the epidermis,…