seborrheic dermatitis
Histologic Features
- Focal parakeratosis containing neutrophils at the follicular ostia
- Dilated infundibulum containing follicular plug
- Focal spongiosis especially at the follicular ostia
- Neutrophils in the vicinity of spongiotic foci
- Dilated blood vessels of the superficial plexus
- A sparse lymphohistiocytic perivascular infiltrate around the superficial vessels
Updated Wednesday, July 31, 2013 8:30:48 PM