Rare Location of a Trichoblastic Carcinoma: A Case Report

Case Report

Austin J Dermatolog. 2017; 4(2): 1075.

Rare Location of a Trichoblastic Carcinoma: A Case Report

Lahbali O*, Azami MA, Tbouda M, Bourhoum N, Znati K and Mahassini N

Department of Pathology, University Hospital Ibn Sina, Morocco

*Corresponding author: Othmane Lahbali, Department of Pathology, University Hospital Ibn Sina, Mohammed V University in Rabat, Morocco

Received: June 12, 2017; Accepted: July 03, 2017; Published: July 11, 2017


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.

Keywords: Trichoblasctic carcinoma; Adnexal tumor; Basal cell carcinoma


Trichoblastic carcinoma is an aggressive malignant epithelial tumor of the follicular germ. It may develop on lesions of solitary or multiple trichoblastoma.

This rare entity is characterized by a very important recurrent and metastatic power and often poses a differential diagnosis problem with basal cell carcinoma.

Case Presentation

We report a case of a 50-year-old man with an ulcerated lesion in the peri-umbilical abdominal level evolving for 1 year. The clinical examination found an ulcerated indurate lesion measuring 4cm long. Surgical excision was performed with a safety margin of 1cm.

The microscopic examination showed a tumor proliferation composed of a double contingent. The first contingent contains epithelial lobules of small and medium size within a cellular stroma (Figure 1). The tumor cells are more basophilic at the periphery of the epithelial lobules than at the center (Figure 2).