transitional cell carcinoma

[trăn-zĭshə-nəl]
n.
  1. A malignant neoplasm derived from transitional epithelium and occurring primarily in the urinary bladder, ureters, or renal pelvises.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.