title: Microscopic study of the pig ureteral urothelium.
abstract: OBJECTIVE
  To characterize the structure of normal pig ureteral urothelium.
  
  
  METHODS
  Normal ureters of adult pigs [Large White] were studied by light microscopy. Cells were stained histochemically for glycogen and mucin with Periodic Acid Shiff and Alcian Blue.
  
  
  RESULTS
  Pig urothelium has a comparable structure to that of man: transitional epithelium comprising 4 to 5 cell layers. However, several mucinous cells are seen between the urothelial cells.
  
  
  CONCLUSIONS
  The pig ureter differs from human ureter due to the presence of mucinous cells in the ureteral urothelium under normal conditions. This feature must be taken into account in the interpretation of experimental results obtained with this model.
authors.affiliation: Department of Urology, Saint-Louis Hospital, Paris, France.
authors.forename: F
authors.initials: F
authors.lastname: Desgrandchamps
authors.forename: F
authors.initials: F
authors.lastname: Moulinier
authors.forename: B
authors.initials: B
authors.lastname: Cochand-Priollet
authors.forename: M
authors.initials: M
authors.lastname: Wassef
authors.forename: P
authors.initials: P
authors.lastname: Teillac
authors.forename: A
authors.initials: A
authors.lastname: Le Duc
mesh_terms: D000818:Animals; D005260:Female; D013552:Swine; D014513:Ureter / Q000166:cytology*; D019459:Urothelium / Q000166:cytology