title: Chronic Cystitis Associated With Keratinizing Squamous Metaplasia Progressing to Squamous Papilloma.
abstract: We present a patient with extensive keratinizing squamous metaplasia that progressed to squamous papilloma over the course of follow-up. To our knowledge, this is the first published case of keratinizing squamous metaplasia with melanotic deposits of an unknown material with synchronous development of squamous papilloma.
authors.affiliation: Department of Urology, University of Oklahoma Health Sciences Center, Oklahoma, OK.
authors.forename: Corinne
authors.initials: C
authors.lastname: Puzio
authors.affiliation: Department of Urology, University of Oklahoma Health Sciences Center, Oklahoma, OK.
authors.forename: Gennady
authors.initials: G
authors.lastname: Slobodov
keywords: Metaplasia; Papilloma; Urothelium