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Prolactinoma in a sheep

L Gonzalez1, L Balaguer, J Romano

  • 1Servicio de Investigación, Facultad de Veterinaria, Universidad de Santiago, Lugo, Spain.

Journal of Comparative Pathology
|October 1, 1994
PubMed
Summary
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Researchers identified an acidophilic adenoma in an adult ewe, diagnosing it as a prolactinoma. This pituitary tumor is a novel consideration for nervous disorders in sheep.

Area of Science:

  • Veterinary Pathology
  • Endocrinology
  • Sheep Medicine

Background:

  • Pituitary adenomas can cause neurological signs in animals.
  • Acidophilic adenomas are a specific type of pituitary tumor.

Observation:

  • An adult ewe presented with clinical signs suggestive of a nervous disorder.
  • An incidental finding of an acidophilic adenoma in the pituitary gland was noted during examination.

Findings:

  • Immunohistochemical analysis confirmed the presence of prolactin within the tumor cells.
  • The tumor was definitively identified as a prolactinoma.
  • This marks the first documented instance of a prolactinoma in veterinary literature.

Implications:

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  • Prolactinomas should be included in the differential diagnosis for sheep exhibiting neurological conditions.
  • This finding expands the understanding of pituitary tumors in livestock.
  • Further research into the prevalence and clinical impact of prolactinomas in sheep is warranted.