perforating folliculitis
Histologic Features
- Widely dilated infundibula
- Follicular plugs consisting of scale-crusts with neutrophils
- A parakeratotic horn with central fibrin and degenerative collagen extending down the infundibulum
- Penetration of the follicular epithelium with a granulomatous inflammation in the dermis consisting of lymphocytes and neutrophils
- A curled hair shaft
- Irregular epidermal hyperplasia
- No increase in the elastic fibers by special stain
Updated Wednesday, July 31, 2013 8:30:48 PM