lymphoepithelioma

Lymphoepithelioma-like carcinomas are carcinomas that arise outside of the nasopharynx, but resemble a lymphoepithelioma histologically.

Lymphoepithelioma is also known as "class III nasopharyngeal carcinoma" in the WHO classification system.

Lymphoepithelioma is a type of poorly differentiated nasopharyngeal carcinoma characterized by prominent infiltration of lymphocytes in the area involved by tumor.

Lymphoepithelioma may also be referred to as Schmincke-Regaud tumor, after the German pathologist Alexander Schminke and French radiologist Claude Regaud.

If the biopsy is an undifferentiated carcinoma (in particular, a lymphoepithelioma), the most probable primary site is in Waldeyer ring; for example, the nasopharynx, base of tongue, or tonsil.

Nakamura RA, Novaes PE, Antoneli CB, et al.: High-dose-rate brachytherapy as part of a multidisciplinary treatment of nasopharyngeal lymphoepithelioma in childhood.