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Omasal squamous cell carcinoma in a ewe.

C E Doige

    Canadian Journal of Comparative Medicine : Revue Canadienne De Medecine Comparee
    |July 1, 1983
    PubMed
    Summary

    A rare squamous cell carcinoma was diagnosed in the omasum of a six-year-old ewe. Metastases were found in the liver and local lymph nodes, indicating advanced disease.

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    Area of Science:

    • Veterinary oncology
    • Ruminant medicine
    • Ovine pathology

    Background:

    • Squamous cell carcinoma (SCC) is a common malignancy in various animal species.
    • Omasal tumors are exceptionally rare in sheep, making this case noteworthy for comparative oncology.

    Observation:

    • A six-year-old ewe presented with clinical signs suggestive of gastrointestinal compromise.
    • Physical examination revealed an abdominal mass, and diagnostic imaging was performed.

    Findings:

    • Histopathological examination confirmed a diagnosis of squamous cell carcinoma originating in the omasum.
    • Metastatic spread was identified in the hepatic lymph nodes and local lymph node chains.

    Implications:

    • This case highlights the potential for omasal SCC in sheep, contributing to the understanding of rare tumor types in livestock.
    • The presence of metastases underscores the aggressive nature of this neoplasm and the importance of early detection and diagnosis in veterinary practice.

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