OBJECTIVE: To obtain information on the presenting symptoms, location, sex distribution, age, endoscopic appearance, histopathology, suitable treatment and recurrence of @entity652 , a rare, benign lesion of the urinary tract mucosa. @entity1 AND METHODS: The records of 31 @entity1 with @entity652 diagnosed at the Sahlgrenska University Hospital between 1980 and 1996 were reviewed to determine the symptomatology, imaging investigations, endoscopic presentation, clinical outcome after resection and the frequency of recurrence. RESULTS: The lesions were found in the urinary bladder, bulbar urethra, urethral diverticula and the prostatic urethra. Eight @entity1 presented with haematuria, 13 complained of urinary frequency and @entity2336 and in 12 @entity1 without subjective symptoms from the urinary tract, the lesion was found accidentally. Twenty-seven of the @entity1 had a history of previous urothelial trauma, either by instrumentation or @entity32 . Seventeen of the lesions were polypoid at endoscopy, the remainder being flat except for two cases, in which they were not noted because they were concealed in another lesion to be resected. Seven @entity1 had one or more recurrences. All @entity1 with symptoms responded well to transurethral resection. CONCLUSION: @entity652 mimics @entity5 or @entity2335 and it is rarely suspected on clinical grounds; instead, the diagnosis is almost always histological. This study supports the view that @entity652 may represent a metaplastic response to trauma of the urothelium and that transurethral resection provides a good method of relieving the symptoms in symptomatic @entity652 .

XXXX --a study with special reference to clinical presentation.

@entity1 :: ('9606', 'Species') :: ['patients', 'PATIENTS'] @entity32 :: ('MESH:D007249', 'Disease') :: ['inflammation'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumour'] @entity2336 :: ('MESH:D018856', 'Disease') :: ['bladder pain'] @entity652 :: ('MESH:D000236', 'Disease') :: ['nephrogenic adenoma', 'Nephrogenic adenoma'] @entity2335 :: ('MESH:D003556', 'Disease') :: ['chronic cystitis']
@entity652 :: (MESH:D000236,Disease) :: ['Nephrogenic adenoma']
