Skin - Nonmelanocytic tumors
Adnexal tumors - hair follicles
Warty dyskeratoma

Author: Christopher Hale, M.D. (see Authors page)

Revised: 6 October 2016, last major update June 2012

Copyright: (c) 2002-2016,, Inc.

PubMed Search: Warty dyskeratoma

Cite this page: Warty dyskeratoma. website. Accessed October 17th, 2018.
Definition / general
  • Also called isolated follicular keratosis
  • Small maculopapular lesion of sun-exposed skin of head / neck
  • Either follicular counterpart of actinic keratosis or a follicular neoplasm
  • Not related to Darier’s disease
Case reports
Clinical images

Images hosted on other servers:

Warty dyskeratoma

Gross description
  • Solitary, well-defined nodule
Microscopic (histologic) description
  • Cup-shaped keratin-filled invagination
  • Acanthotic epidermis with acantholytic dyskeratotic cells
  • Suprabasilar clefting with villi projecting into clefts
Microscopic (histologic) images

Images hosted on Flickr:

Warty dyskeratoma, courtesy of Dr. Mowafak Hamodat, MB.CH.B, MSc., FRCPC