Revista da Sociedade Portuguesa de Dermatologia e Venereologia (Dec 2021)

Trichilemmal Horn: A Case Report

  • Rodrigo C. Davanço,
  • Domingos J. Neto,
  • Carolina B. Milanez,
  • António J. Tebcheran

DOI
https://doi.org/10.29021/spdv.79.4.1383
Journal volume & issue
Vol. 79, no. 4

Abstract

Read online

Trichilemmal horn or trichilemmal keratosis is a benign neoplasm, that occurs more frequently in females and in the age group over 50 years old. Clinically, it presents as a cutaneous horn and histologically shows trichilemmal keratinization at the base of the lesion. As an uncommon pathology, in this case report, we will present the case of a young man (14 years old), presenting a keratotic lesion on the forehead for eight months, which revealed the diagnosis of trichilemmal horn after lesion exeresis and anatomopathological analysis.

Keywords