- Published:
Pancreatic Duct Obstruction in the Pig: Electron Microscopy of Chronic Pancreatitis
Obstruktion av ductus pancreaticus hos svin. En elektronmikroskopisk undersökning av kronisk pankreatit
Acta Veterinaria Scandinavica volume 29, pages 255–258 (1988)
Abstract
Ultrastructural alterations of pancreatic tissues in growing pigs caused by surgical ligation of the main pancreatic duct are described. Five animals aged 6 to 7 weeks were operated on and necropsied 2, 6 or 8 weeks later. In addition, 3 pigs that were sham-operated served as controls. Obstruction of the ducts caused progressive luminal dilatations and rupture of intercellular connections of the epithelium followed by destruction and atrophy of acinar parenchyma and proliferations of immature ductular epithelial cells free from zymogen granules.
Sammanfattning
Morfologiska alterationer i pankreasvävnaden beskrivs hos växande svin med ligerad pankreasgång. Fem försöksdjur, 6–7 veckor gamla, opererades och obducerades 2, 6 och 8 veckor senare. Som kontroll användes 3 sham-opererade svin. Obstruktionen förorsakade progressiv dilatation av den ligerade pankreasgången och intercellulära rupturer i epitelet. Den akinära vävnaden atrofierades och ersattes med proliferationer av immatura epitelceller utan zymogengranula.
References
Andersson NV: Chronic (relapsing) pancreatitis. In: Spontaneous Animal Models of Human Disease, Ed. Andrew EJ, Ward BC, Altman NH. Vol. I, Academic Press, New York 1979, p. 34–36.
Boquist L, Edstrom C: Ultrastructure of pancreatic acinar and islet parenchyma in rats at various intervals after duct ligation. Virchows Arch. Abt. A Path. Anat. 1970, 1970, 349, 69–70.
Catala J, Bonnafous R, Dutrillaux MC, Hollande E: Dissociation of Langerhans islets in the rabbit after pancreatic duct ligation. Immunocytochemical and ultrastructural studies. Virchows Arch. (Cell. Pathol.) 1987, 52, 539–551.
Churg A, Richter WR: Early changes in the exocrine pancreas of the dog and rat after ligation of the pancreatic duct. Amer. J. Path. 1971, 63, 521–534.
Klöppel G, Dreyer T, Willemer S, Kern H, Adler G: Human acute pancreatitis: its pathogenesis in the light of immunocytochemical and ultrastructural findings in acinar cells. Virchows Arch. (Pathol. Anat.) 1986, 409, 791–803.
Longnecker DS: Pathology and pathogenesis of diseases of the pancreas. Amer. J. Path. 1982, 107, 99–121.
Pang WF, Adams JH, Beasley VR, Buck WB, Haschek WM: Myocardial and pancreatic lesions induced by T-2 toxin, a Trichothecene mycotoxin, in swine. Vet. Pathol. 1986, 23, 310–319.
Rahko T, Grönlund A-M, Kalima TV, Saloniemi H: A new animal model for exocrine pancreatic insufficiency. Path. Res. Pract. 1985, 180, 309.
Rahko T, Nikander S, Kalima TV, Saloniemi H: An experimental study of exocrine pancreatic insufficiency in the pig. Proceedings 4th Joint Meeting Veterinary Pathologists, 1986, p. 136.
Rahko T, Kalima TV, Saloniemi H: Pancreatic duct obstruction in the pig: Light microscopy of chronic pancreatitis. Acta vet. scand. 1987, 28, 285–289.
Schiller WR, Syriyapa C, Anderson MC: A review of experimental pancreatitis. J. Surg. Res. 1974, 16, 69–90.
Zelander T, Ekholm R, Edlund Y: The ultrastructure of rat exocrine pancreas after experimentally occluded outflow. Ultrastruct. Res. 1964, 10, 89–102.
Zeligs J, Janoff A, Dumont AE: The course and nature of acinar cell death following pancreatic ligation in the guinea pig. Amer. J. Path. 1975, 80, 203–206.
Walters MN-I, Archer JM, Padadimitriou JM: Pancreatic duct obstruction: ultrastructural morphology of the acute phase. Pathology 1969, 1, 95–104.
Acknowledgements
Electron microscopial studies were performed in the Laboratory of Electron Microscopy, College of Veterinary Medicine, Helsinki.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Rahko, T., Saloniemi, H. & Kalima, T.V. Pancreatic Duct Obstruction in the Pig: Electron Microscopy of Chronic Pancreatitis. Acta Vet Scand 29, 255–258 (1988). https://doi.org/10.1186/BF03548379
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1186/BF03548379