urothelial inverted papilloma

Digital images

 JRC:2819 : Bladder inverted papilloma (56 y M. Gross painless hematuria)

Definition: Inverted papilloma of the urinary bladder is rare, accounting for <1% of all bladder neoplasms. Although there is general consensus that inverted papilloma is benign in nature, little is known about its pathogenesis.

Localization

 vesical inverted papilloma (bladder inverted papilloma)

Etiology

 Not linked to Human Papillomavirus (HPV) (#23681080#)

References

 Human Papillomavirus is Not an Etiologic Agent of Urothelial Inverted Papillomas. Alexander RE, Davidson DD, Lopez-Beltran A, Montironi R, Maclennan GT, Compérat E, Idrees MT, Emerson RE, Cheng L. Am J Surg Pathol. 2013 May 15. PMID: #23681080#