Trichoblastoma

Last Updated: 2023-07-07

Author(s): Anzengruber F., Navarini A.

ICD11: 2F22

Entity described by

Headington 1976

Definition

Good hair follicle tumour that can develop from a nevus sebaceus.

Epidemiology

Increasing in frequency from the age of 50 years.

Clinical features

Skin-coloured, sharply demarcated nodule, mostly occurring on the capillitium.

Diagnosis

Clinical image.

Biopsy.

Therapy

Excision.

References

Atypical giant trichoblastoma: An unusual presentation. Nguyen LV, Masouminia M, Choy JO, Peng SK, Ji P, French SW. Exp Mol Pathol. 2017 Feb;102(1):22-24.
Ogata T, Tanaka S, Goto T, Iijima T, Kawano H, Sasaki M, Ishida T, Nakamura K. Giant trichoblastoma mimicking malignancy. Arch Orthop Trauma Surg. 1999;119(3-4):225-7.
Wang E, Lee JS, Kazakov DV. A rare combination of sebaceoma with carcinomatous change (sebaceous carcinoma), trichoblastoma, and poroma arising from a nevus sebaceus. J Cutan Pathol. 2013 Jul;40(7):676-82.