actinic keratosis, comedonal type
Histologic Features
- A number of dilated hair follicles containing keratotic plugs one adjacent to another
- Dilated pseudohorn cysts with thin epithelium
- Prominent atypia of the basal layers
- Chronic inflammation at the base
- Marked solar elastosis of the dermis
Updated Wednesday, July 31, 2013 8:30:48 PM