Volume 69, Issue 4 , Pages 166-168, April 2006
Nephrogenic Adenoma of the Urinary Bladder: Clinical Experience and Review of the Literature
Article Outline
Background
Nephrogenic adenoma (NA) is a rare disease of the urinary tract. We report our clinical experience with this disease in the urinary bladder and review the literature.
Methods
Between April 1994 and July 2004, 8 patients were diagnosed with NA of the urinary bladder: 3 men and 5 women, aged 23–77 years (mean 49.6). Multiple predisposing factors were analyzed. The mean follow-up time was 56 months.
Results
NA was not associated with transitional cell carcinoma in our series. All patients had recurrent urinary tract infection. Urinary tuberculosis was diagnosed in 2 patients. Two patients had undergone previous open urosurgery, and 4 patients had received previous endourologic management. A history of urolithiasis was found in 1 patient. Previous long-term urinary catheterization was noted in 3 patients. Two patients had received pelvic radiation therapy for cervical cancer. Urinary frequency and microscopic hematuria were found in all patients. All nephrogenic adenomas were treated with transurethral resection. Recurrent nephrogenic adenomas were diagnosed in 3 patients (median time to disease relapse, 7 months). Recurrent tumors were also treated with the endourologic method.
Conclusion
NA is an uncommon benign metaplastic lesion occurring in the urothelium. Transurethral resection of NA provides a definite diagnosis and relief of symptoms. The recurrence rate of NA is relatively high, so careful and long-term follow-up is necessary.
Key Words: nephrogenic adenoma , urinary bladder , urothelium
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References
- . Hamartoma of the urinary bladder . Northwest Med . 1949;48:182–185
- . Adenomatoid tumor of the bladder reproducing renal structures (nephrogenic adenoma) . J Urol . 1950;64:657–670
- . Clear cell adenocarcinoma and nephrogenic adenoma of the urethra and urinary bladder: a histopathologic and immunohistochemical comparison . Hum Pathol . 1998;29:1451–1456
- . Tubulo-papillary adenoma (so-called nephrogenic adenoma) arising in the renal pelvis: report of a case with a critical consideration of histogenesis and terminology . Pathol Res Pract . 1993;189:217–225
- . Nephrogenic adenoma of the urinary tract: a review of the microscopic appearance of 80 cases with emphasis on unusual features . Mod Pathol . 1995;8:722–730
- . Nephrogenic adenoma associated with intravesical Bacillus Calmette-Guérin treatment: a report of 2 cases . J Urol . 1986;135:359–361
- . High incidence of nephrogenic adenoma of the bladder after renal transplantation . Transplantation . 1998;65:511–514
- . Nephrogenic adenoma of the urinary bladder: our experience and review of the literature . Urol Int . 2001;66:152–155
- . Nephrogenic adenoma: a study with special reference to clinical presentation . Br J Urol . 1997;80:539–542
- . Nephrogenic metaplasia (adenomatoid tumors) of bladder . Urology . 1976;8:283–286
- . Nephrogenic metaplasia of urinary tract in children: report of three cases and review of the literature . Pediatr Pathol . 1988;8:293–300
- . Nephrogenic adenoma: a report of 9 cases and review of the literature . J Urol . 1982;127:775–779
PII: S1726-4901(09)70199-6
doi:10.1016/S1726-4901(09)70199-6
© 2006 Elsevier. Published by Elsevier Inc. All rights reserved.
Volume 69, Issue 4 , Pages 166-168, April 2006
