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Monday 29 October 2007

Fat fingers

A 53-year-old woman consulted for this pigmented lesion on her back.
Dermoscopy revealed brown structures typical of fat fingers, in favor of a seborrheic keratosis.
Fat fingers are an important dermoscopic sign to know for diagnosing seborrheic keratosis in absence of other typical signs (milia-like kysts, comedo-like structures, fingerprint-like structures, sharp margins, hairpin blood vessels)

Kopf and al, "Fat fingers", a clue in the dermoscopic diagnosis of seborrheic keratoses J Am Acad Dermatol