Patient 167
On January - 5 - 2010
In a 46-year-old woman, on the dorsa of hand
What to see at dermoscopy:
-raised and hyperqueratotic border (arrow)
-central light brown pigmentation Dermoscopy in favor of porokeratosis
Comments: the dermoscopic findings are present even in early lesions; the hiperqueratotic border corresponds to the histological cornoid lamella