Skin nonmelanocytic tumor
Benign (nonmelanotic) epidermal tumors or tumor-like lesions
Warty dyskeratoma

Topic Completed: 1 June 2012

Minor changes: 10 April 2019

Copyright: 2002-2019,, Inc.

PubMed Search: Warty dyskeratoma

Christopher S. Hale, M.D.
Page views in 2019: 5,571
Page views in 2020 to date: 3,363
Cite this page: Hale CS. Warty dyskeratoma. website. Accessed August 10th, 2020.
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 other servers:

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

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