Nephrogenic adenoma of bladder

Our plain-English summary of Nephrogenic adenoma of bladder, by E. Kaany, S.L. Werner (Urology, 1974).

The study

• Authors: E. Kaany, S.L. Werner
• Journal: Urology
• Published: 1974;4(3):343-5
• Cited by: 16 articles, as counted by NIH iCite
• Read it: PubMed · Publisher

Abstract

An unusual case of nephrogenic adenoma of the bladder is presented, with a review of the current literature. The association of previous bladder trauma and chronic infection of the bladder is emphasized.

PubMed has no abstract for this study. This is the authors' abstract, copied from the article.

In plain English

This case report, with a brief review of the English-language literature, came from the Department of Urology at Washington Hospital Center, Washington, D.C. It does not concern asbestos. The patient was a 24-year-old man who had suffered severe pelvic and urinary tract injuries, including near-complete tearing of the urethra, in a car accident four years earlier. When the authors saw him, about three and one-half years after the injury, he had painful, frequent urination, and his bladder held only 50 cc. Imaging showed an irregular filling defect in the bladder, and small biopsies showed chronic cystitis (bladder inflammation). After the mass was removed through the urethra, the pathology report described benign-appearing tissue resembling kidney tissue, a lesion called nephrogenic adenoma. Mild symptoms persisted. The authors' literature review found only three cases, reported by Goldman, since 1962. The authors concluded that the lesion is believed to be benign, slow growing and associated with earlier bladder trauma and chronic infection, and that possible malignant degeneration calls for prolonged follow-up.

We wrote this plain-English summary from the full article with the help of AI, and a second AI model checked each sentence against the article. It is not the authors' wording; the abstract and the article are their own account.

What the study did and found

• Design: case report with a review of the English-language literature
• Who was studied: one 24-year-old white man seen at the Department of Urology, Washington Hospital Center, Washington, D.C., four years after a car accident
• Exposure: No asbestos exposure is discussed. The patient's relevant history was bladder and urethral trauma from a car accident, followed by chronic bladder infection.
• Main results:
  • The patient was seen by the authors about three and one-half years after the injury, with ongoing urinary symptoms.
  • Intravenous urography showed a small bladder with a lobular, irregular filling defect in the right dome.
  • Bladder capacity was 50 cc.
  • Punch biopsies showed chronic cystitis.
  • After transurethral resection, the pathology report described benign-appearing tissue resembling renal tissue.
  • Mild urinary frequency and painful urination persisted after surgery.
  • The authors' review of the English literature found only Goldman's 3 cases since Hansen's 1962 report.
• The authors' conclusion: The authors concluded that the lesion is believed to be benign, slow growing, associated with previous bladder trauma and chronic infection, and mainly affecting young men, and that possible malignant degeneration calls for prolonged follow-up.

Topics

The National Library of Medicine indexes this study under subjects our site covers: Mesothelioma.

Related studies

• Nephrogenic adenoma: a form of adenomatous metaplasia of the bladder. A clinical and electron microscopical study — E.A. Molland, P.A. Trott, et al. (1976)
• Nephrogenic adenoma of bladder — S.I. Tannenbaum, S.A. Kramer, et al. (1980)
• Nephrogenic adenoma of the bladder in children — S.R. Nold, W.J. Terry, et al. (1989)
• Nephrogenic metaplasia (adenomatoid tumors) of bladder — J.A. Kaswick, J. Waisman, et al. (1976)
• Nephrogenic metaplasia of the bladder — E.B. Sussman, M. Brice, et al. (1974)
• Use of job-exposure matrix in an occupational analysis of lung and bladder cancers on the basis of death certificates — D. Coggon, B. Pannett, et al. (1984)

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