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3 March 2017 Acute Lameness in a Roller Pigeon ( Columba livia) with Multicentric Lymphosarcoma
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A 3-yr-old adult female roller pigeon (Columba livia) used as part of a breeding pair for an ongoing research study presented with acute left limb lameness. Palpation of the left leg and region revealed a large lump near the coxofemoral joint. The bird was able to ambulate in the cage, but would not brood her hatchling. The bird was humanely euthanized and necropsy was performed. Grossly, multiple large white to pale tan nodules were noted in the pancreas, lung, rib cage, intestines, and unilaterally in the left kidney. Microscopic examination of the various organs revealed neoplastic proliferation of round cells consistent with lymphoblasts. Immunohistochemistry was performed with the use of antibodies to CD3, CD79a, CD20, and CD21 to phenotype the cells. The results indicated that the neoplastic infiltrating cells were predominantly of T-cell origin.

Susan M. Williams, Robert J. Williams,, and Robert M. Gogal "Acute Lameness in a Roller Pigeon ( Columba livia) with Multicentric Lymphosarcoma," Avian Diseases 61(2), 267-270, (3 March 2017).
Received: 4 January 2017; Accepted: 1 February 2017; Published: 3 March 2017

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