Lymphoepithelial Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A nonkeratinizing carcinoma which occurs predominantly in the nasopharynx but also in the tonsils and rarely in other anatomic sites. It is characterized by the presence of large malignant cells with vesicular nuclei, prominent nucleoli, syncytial growth pattern, and a lymphoplasmacytic infiltrate.

**Synonyms:** - Lymphoepithelial carcinoma - Lymphoepithelial carcinoma - Lymphoepithelioma - Lymphoepithelioma - Lymphoepithelioma-Like Carcinoma - Lymphoepithelioma-like carcinoma - Nasopharyngeal Type Undifferentiated Carcinoma - Nasopharyngeal-Type Undifferentiated Carcinoma - Schmincke Tumor - lymphoepithelioma