|
| Fig. 43.3 Typical acquired digital fibrokeratoma demonstrating an exophytic firm papule with a hyperkeratotic collarette. |
These solitary, firm, hyperkeratotic papules most commonly occur around interphalangeal joints but may occur on any site of the hands or feet. They are typically pedunculated and often demonstrate a collarette of hyperkeratosis at the base (Fig. 43-3). Often, they are mistaken clinically for warts or supernumerary digits. Histologically, they demonstrate overlying hyperkeratosis and thickened collagen bundles.
Baykal C, Buyukbabani N, Yazganoglu KD, Saglik E: Acquired digital fibrokeratoma,
Cutis 79:129–132, 2007.
