label: Nasopharyngeal-Type Undifferentiated Carcinoma
label_lc: nasopharyngeal-type undifferentiated carcinoma
description: "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."