Rare Location of a Trichoblastic Carcinoma: A Case Report

Abstract

Trichoblastic carcinoma is a rare malignant adnexal tumor that can give metastases. It occurs mainly in the elderly and often poses diagnostic problems with basal cell carcinoma. We report the observation of a 50-year-old man who consulted for an ulcerated lesion of the abdomen evolving for 1 year. A surgical excision was performed and the histological analysis showed a trichoblastic carcinoma associated with a trichoblastoma. The particularity of our case is the entity which is rare and its location exceptional, since only one case has been reported in the abdominal level in the literature.

Clinicopathological features of trichoblastomas and malignant variant: trichoblastic carcinoma

“…Pigmented forms such as trichoblastomas and giant forms have also been reported [14,15]. As in our patients, these lesions mostly affect the head and neck region [16] and the elderly, although, other locations such as the abdomen [17] and the paraspinal area [18] may also be involved. The histopathology of malignant trichoblastoma consists of an epithelial component that is surrounded by special follicular stroma, as in the benign form, although, it has also moderate or marked atypia.…”