Nephrogenic adenoma mimicking carcinoma: a potential pitfall in cytodiagnosis.
Nephrogenic adenoma of the urinary bladder and urethra is an uncommon benign lesion of the urinary epithelium that can cytologically and histologically mimic malignancy. We report on the cytologic findings of a case of nephrogenic adenoma of the urethra that mimicked malignancy in an 84-yr-old woman. The differential diagnosis of this problematic lesion is discussed, and the literature describing the cytologic features is reviewed.
Henke
A C
AC
Department of Pathology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA. andrew-henke@uiowa.edu
Callaghan
E J
EJ
Timmerman
T G
TG
Hughes
J H
JH
D000236:Adenoma / Q000473:pathology*; D000368:Aged; D000369:Aged, 80 and over; D002277:Carcinoma / Q000473:pathology*; D003581:Cytodiagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D014523:Urethral Neoplasms / Q000473:pathology*