title: Nested variant of transitional cell carcinoma with osseous metaplasia of the urinary bladder: a case report and review of published reports.
abstract: Nested variant of transitional cell carcinoma (NV-TCC) of the bladder is a rare and relatively new entity. The tumor is aggressive contrasted by its benign histopathologic appearance, and characterized by irregular urothelial nests and/or tubules. Herewith, a case with exceptional osseous metaplasia is presented emphasizing its diagnostic difficulties, because it can be confused with benign diseases or conventional TCC.
authors.affiliation: Pathology Department, Celal Bayar University, Manisa, Turkey. nalannese@hotmail.com
authors.forename: Nalan
authors.initials: N
authors.lastname: Neşe
authors.forename: Ali Riza
authors.initials: AR
authors.lastname: Kandiloğlu
authors.forename: Yusuf Z
authors.initials: YZ
authors.lastname: Atesçi
mesh_terms: D002295:Carcinoma, Transitional Cell / Q000473:pathology*; D006801:Humans; D008297:Male; D008679:Metaplasia; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000209:etiology*; D001743:Urinary Bladder / Q000473:pathology*; D001749:Urinary Bladder Neoplasms / Q000473:pathology*