Keratotic papule with a collarette of skin.

Abstract

Acquired digital fibrokeratoma (acral fibrokeratoma) is a benign lesion that principally occurs on the fingers and toes.[1] Some appear to originate from the proximal nail fold.[2] It was first described by Bart et al. in 1968. [3] It is usually seen in adults as a solitary dome-shaped lesion, with a warty surface and a collarette of slightly raised skin at its base. It may occasionally be elongated or pedunculated. Rare cases of familial multiple acral mucinous fibrokeratoma and multiple acral fibromas associated with familial retinoblastoma have been reported. These are possibly examples of cutaneous markers of tumor suppressor gene germline mutation.[