Trichilemmoma of atypical location

Authors

  • Josefina Ángeles Garais Private University Hospital of Córdoba, Córdoba, Argentina
  • Florencia Carla Monti Private University Hospital of Córdoba, Córdoba, Argentina
  • Enrique Valente Private University Hospital of Córdoba, Córdoba, Argentina
  • Alejandro Ruiz Lascano Private University Hospital of Córdoba, Córdoba, Argentina
  • María Kurpis Private University Hospital of Córdoba, Córdoba, Argentina

Keywords:

trichilemmoma, follicular neoplasms, atypical localization

Abstract

Trichilemmomas are benign follicular neoplasms with differentiation towards the outer root sheath of the hair follicle. Generally, the lesions are located in the head and neck and affect middle-aged men. The diagnosis is usually histopathological. We present the case of a patient who consulted for trichilemmona of an atypical localization (left forearm), whose clinic aspect elicited other differential diagnoses.

Author Biographies

Josefina Ángeles Garais, Private University Hospital of Córdoba, Córdoba, Argentina

Resident of the Dermatology Service

Florencia Carla Monti, Private University Hospital of Córdoba, Córdoba, Argentina

Resident of the Dermatology Service

Enrique Valente, Private University Hospital of Córdoba, Córdoba, Argentina

Dermatologist of the Dermatology Service and Professor of the Postgraduate Course in Dermatology, Catholic University of Córdoba

Alejandro Ruiz Lascano, Private University Hospital of Córdoba, Córdoba, Argentina

Head of the Dermatology Service and Director of the Postgraduate Course in Dermatology, Catholic University of Córdoba

María Kurpis, Private University Hospital of Córdoba, Córdoba, Argentina

Jefa del Servicio de Patologí

References

I. Headington J, French A. Primary neoplasms of the hair follicle. Histogenesis and classification. Arch Dermatol 1962;86:430-441.

II. Maher EE, Vidal CL. Trichilemmoma. Cutis 2015;96:81:104-106.

III. Brownstein M, Shapiro L. Trichilemmoma: analysis of 40 new cases. Arch Dermatol 1973;107:866-869.

IV. Spiegel JH, Khodai N. Tricholemmoma of the nose. Am J Oto-laryngol 2006;27:430-432.

V. Weedon D. Tumores de los anexos cutáneos. En: Weedon D. Piel Patología. 2.ª ed. Marbán: Madrid, 2002, 721-722.

VI. Herráiz M, Martín-Fragueiro LM, Tardío JC. Trichilemmoma arising in the nasal vestibule: report of three cases with spe-cial emphasis on the differential diagnosis. Head Neck Pathol2012;6:492-495.

VII. Misago N, Toda S, Narisawa Y. Tricholemmoma and clear cell squamous cell carcinoma (associated with Bowen’s disease): immunohistochemical profile in comparison to normal hair follicles. Am J Dermatopathol 2012;34:394-399.

VIII. Fuertes L, Santonja C, Kutzner H, Requena L. Inmunohisto-química en dermatopatología: revisión de los anticuerpos utilizados con mayor frecuencia (Parte II). Actas Dermosifiliogr2013;104:181-203.

IX. Sano DT, Yang JJH, Tebcherani AJ, Bazzo LA. A rare clinical pre-sentation of desmoplastic trichilemmoma mimicking invasive carcinoma. An Bras Dermatol 2014;89:796-798.

X. Al-Zaid T, Ditelberg JS, Prieto VG, Lev D, et ál. Trichilemmomas show loss of PTEN in Cowden syndrome but only rarely in spo-radic tumors. J Cutan Pathol 2012;39:493-499.

XI. Horcajada-Reales C, Avilés-Izquierdo J, Conde-Montero E, Parra-Blanco V, et ál. Dermoscopic pattern in facial tri-chilemmomas: red iris-like structure. J Am Acad Dermatol2015;72:S30-S32.

Published

2017-12-01