adenoid cystic carcinoma

n.
  1. A carcinoma characterized by large epithelial masses containing round glandlike spaces or cysts, frequently containing mucus, that are bordered by layers of epithelial cells.cylindromatous carcinoma
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.