Neşe N.Kandiloǧlu A.R.Atesçi Y.Z.2024-07-222024-07-22200714422042http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/19351Nested 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. © 2007 The Japanese Urological Association.EnglishCarcinoma, Transitional CellHumansMaleMetaplasiaMiddle AgedOssification, HeterotopicUrinary BladderUrinary Bladder Neoplasmsantineoplastic agentadultarticlebladderbladder carcinomabone tissuecancer chemotherapycancer diagnosiscarcinoma in situcase reportcystectomycystoscopydiagnostic approach routedisease coursehistopathologyhumanlaboratory testmalemetaplasiametastasisosteocytepriority journaltransitional cell carcinomaurine retentionArticle10.1111/j.1442-2042.2007.01523.x