What is an inverted follicular keratosis?

Updated: Jan 30, 2020
  • Author: Ginard I Henry, MD; Chief Editor: Gregory Gary Caputy, MD, PhD, FICS  more...
  • Print
Answer

Answer

Irritated seborrheic keratosis is one subtype, characterized by a predominance of basal cells but with whorling sheets of squamous cells. This squamous metaplasia is a consequence of irritation and requires careful discrimination from basosquamous carcinoma. A dermal lymphocytic infiltrate also may be observed, corroborating the inflamed irritated variation.


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!