Nephrogenic adenoma of the urinary bladder and urethra is an uncommon benig
n lesion of the urinary epithelium that carl cytologically and histological
ly mimic malignancy. We report on the cytologic findings of a case of nephr
ogenic adenoma of the urethra that mimicked malignancy in an 84-yr-old woma
n. The differential diagnosis of this problematic lesion is discussed, and
the literature describing the cytologic features is reviewed. Diagn. Cytopa
thol. 2000;22:49-51. (C) 2000 Wiley-Liss, Inc.