The significance of epithelial atypia seen in non-invasive transitional cell papillary tumors of the bladder.
D002295:Carcinoma, Transitional Cell / Q000145:classification / Q000473:pathology*; D004848:Epithelium / Q000473:pathology*; D006801:Humans; D001749:Urinary Bladder Neoplasms / Q000145:classification / Q000473:pathology