Dermaimaging

In a 45-year-old woman, on the scalp

What to see at dermoscopy:

-loss of follicular openings
-follicular pluggings
-incontinentia pigmenti
-erythema
-arborizing vessels
-telangectasia
-peripilar casts
Biopsy was indicated
Histopathology correlation: discoid lupus erythematosus

Comments: the differential diagnosis of this lesion includes lichen planopilaris.
For more information: Ross et al.. Videodermoscopy in the evaluation of hair and scalp disorders. 2006. J Am Acad Dermatol 55: 799-806