lymphoepithelioma

[lĭm′fō-ĕp′ə-thē′lē-ōmə]
n.
  1. A poorly differentiated squamous cell carcinoma involving lymphoid tissue in the region of the tonsils and the nasopharynx.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.