Acquired Digital Fibrokeratoma (Acral Fibrokeratoma)


(Figure 5.3A)
  • Solitary pink or brown keratotic excrescence on finger with surrounding collarete of elevated skin
  • May resemble supernumerary digit
  • Histology: massive orthokeratosis and thick, vertically oriented collagen bundles in dermis, blood vessels surrounding collagen bundles
   
 
Supernumerary digit (Figure 5.3B, C): see ↑ # of nerves
(unlike acquired digital fibrokeratoma)
 
   
Figure 5.3 A: Acquired digital fibrokeratoma* B: Supernumerary digit* C: Supernumerary digit* * Courtesy of Dr. Paul Getz
Figure 5.3
A: Acquired digital
fibrokeratoma*
B: Supernumerary digit*
C: Supernumerary digit*
* Courtesy of Dr. Paul Getz