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Findings in anaplastic large T-cell lymphomas in dogs

Findings in anaplastic large T-cell lymphomas in dogs

A study examined the records of eleven dogs with intestinal masses diagnosed as intestinal lymphoma with anaplastic morphology. Eight (62%) of the cases presented with intestinal perforation, and all cases had 1 or more masses arising from the small intestine. The study found:

  • Histologically, all cases were characterized by transmural infiltrates of large, CD3-positive and frequently CD30-positive cells.

  • Neoplastic T cells had marked anisocytosis and anisokaryosis, prominent nucleoli, and occasionally indented to reniform nuclei.

  • There was abundant necrosis and inflammation with occasional vascular invasion within neoplastic masses.

  • All cases had a monoclonal T-cell receptor γ gene rearrangement.

  • The median survival time was 5 days, with 1 dog surviving 2 years after the initial diagnosis.

Read more by clicking on the link below:

Anaplastic Large T-Cell Lymphoma in the Intestine of Dogs

 

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