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Related Experiment Videos

Upper urinary tract inverted papillomas

A N Chiura1, A Wirtschafter, D H Bagley

  • 1Department of Urology and Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA.

Urology
|September 8, 1998
PubMed
Summary

Inverted papillomas of the upper urinary tract are rare tumors, predominantly affecting males. These lesions are challenging to diagnose and linked to urothelial cancer, necessitating vigilant patient follow-up.

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Area of Science:

  • Urology
  • Oncology

Background:

  • Inverted papilloma is a rare, benign tumor.
  • Upper urinary tract involvement is exceptionally uncommon, with only 33 cases reported previously.

Observation:

  • These lesions exhibit a male predominance.
  • Diagnosis can be challenging.
  • A significant association with urothelial malignancy exists.

Findings:

  • This report details two new cases of inverted papilloma in the upper urinary tract.
  • It also includes follow-up data for a previously reported case from 1990.

Implications:

  • Transitional cell carcinoma may develop years after initial treatment and in different urinary sites.
  • Close and long-term patient monitoring is crucial for early detection of potential malignancies.

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