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Cases of intestinal smooth muscle hypertrophy/hyperplasia in pigeon and chickens

Silvia Pavone1, Marica Stazi1, Valentina Cambiotti1

  • 1Zooprophylactic Experimental Institute of Umbria and Marche "Togo Rosati", Via G. Salvemini, 1, 06126 Perugia, Italy.

The Journal of Veterinary Medical Science
|August 2, 2019
PubMed

Insights

Avian intestinal smooth muscle hypertrophy and hyperplasia are rare, but this study details three cases in Gallinidae and Columbidae birds. Findings reveal significant histological differences compared to mammals.

Area of Science:

  • Veterinary Pathology
  • Avian Histology

Background:

  • Intestinal smooth muscle hypertrophy and hyperplasia are documented in humans and mammals.
  • Reports in avian species are scarce, with only one prior case of hyperplasia noted.

Observation:

  • This study examined three cases of intestinal smooth muscle hypertrophy/hyperplasia in two avian families (Gallinidae and Columbidae).
  • Pathological changes affected the entire small intestine, including mucosal villi, muscularis mucosa, and tunica muscularis layers.

Findings:

  • Histologically, hyperplasia involved multiple intestinal layers, while hypertrophy was observed in the inner circular muscle layer.
  • A notable absence of submucosal plexuses was consistent across all affected birds.
  • The study highlights significant histological distinctions between avian and mammalian intestinal pathology.

Implications:

  • These findings expand the understanding of intestinal smooth muscle diseases in birds.
  • The results underscore the unique histological characteristics of avian intestines compared to mammals.
  • This research contributes to the differential diagnosis of gastrointestinal disorders in avian species.
Keywords:
intestineornamental chickenringdove pigeonsmooth muscle hyperplasia

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