1. Inverted urothelial papilloma: a lesion with malignant potential.
- Author
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Risio M, Coverlizza S, Lasaponara F, Vercesi E, and Giaccone G
- Subjects
- Aged, Epithelium pathology, Humans, Male, Carcinoma, Transitional Cell pathology, Papilloma pathology, Ureter pathology, Ureteral Neoplasms pathology, Urinary Bladder pathology, Urinary Bladder Neoplasms pathology
- Abstract
Two cases of inverted urothelial papilloma are presented. In the first case the inverted papilloma was in the ureter and varying degrees of cellular atypia were demonstrated on histology: 7 years later, a single bladder lesion consisting of papillary transitional cell carcinoma and inverted papilloma developed in the same patient. In the second case a bladder tumor consisting of inverted papilloma mixed with papillary infiltrating transitional cell carcinoma was detected. The peculiar morphological findings, histogenesis and biological behavior of inverted urothelial lesions are discussed.
- Published
- 1988
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