disease has location benign urethral neoplasm nephrogenic adenoma nephrogenic adenoma of the urethra A metaplastic lesion of the urothelium found in the urethra. It is characterized by the presence of aggregates of cuboidal or hobnail cells and represents a reaction of the urothelium to injury caused by instrumentation, surgery or calculi. DOID:8109 MONDO:0004464 NCIT:C7416 UMLS:C1336889 nephrogenic adenoma of urethra urethra nephrogenic adenoma urethral nephrogenic adenoma urethra