Introduction and objective:

Trichofolliculoma is a rare and benign adnexal tumour of the hair follicles. The location of this tumour in the external auditory canal (EAC) is exceptional. Its diagnosis is histopathological.

Objective:

Present an exceptional clinical case, the finding of a trichofolliculoma in the external auditory canal.

Clinical case:

We present the clinical case of a CAE trichofolliculoma that, when associated with a cholesteatoma, had an aggressive manifestation with destruction of the temporal bone.

Conclusion:

Trichofolliculoma is a rare tumour of the hair follicles whose location in the EAC is exceptional. The aggressive behaviour of the case presented was due to its association with a cholesteatoma, probably secondary to the obstruction and recurrent inflammatory processes of the tumour.

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