Rare entities in urinary bladder pathology

Antonio Lopez-Beltran, Rita C. Marques, Rodolfo Montironi, Carlos Reymundo, Jorge Fonseca, Liang Cheng

Research output: Contribution to journalArticle

3 Scopus citations


Bladder carcinoma with variant histology is a subject of recent interest, with data suggesting more aggressive behavior when compared with conventional urothelial carcinoma. The timely identification and recognition of these histological variants should avoid their misinterpretation as benign lesions. We emphasize the need to recognize these peculiar morphologic features since some of them may require a different/specific therapeutic approach. Other rare entities such as bladder polyps and myofibroblastic proliferations tend to occur at a younger age and represent specific problems in the differential diagnosis. We describe the salient clinicopathologic features of representative rare entities arising in the urinary bladder.

Original languageEnglish (US)
Pages (from-to)14-22
Number of pages9
JournalAnalytical and Quantitative Cytology and Histology
Issue number1
StatePublished - Jan 1 2015


  • Fibroepithelial polyps
  • Hamartoma
  • Inflammatory myofibroblastic tumor
  • Micropapillary carcinoma
  • Nested carcinoma
  • Polyps
  • Prostate
  • Small cell carcinoma
  • Undifferentiated carcinoma
  • Urinary bladder
  • Urinary bladder cancer
  • Urothelial carcinoma

ASJC Scopus subject areas

  • Anatomy
  • Histology
  • Medicine(all)

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  • Cite this

    Lopez-Beltran, A., Marques, R. C., Montironi, R., Reymundo, C., Fonseca, J., & Cheng, L. (2015). Rare entities in urinary bladder pathology. Analytical and Quantitative Cytology and Histology, 37(1), 14-22.