Extent of neoplastic infiltration in feline intestinal tumors

Surgery is the most commonly recommended treatment for most solitary feline intestinal tumors. A new study evaluated resected margins of intestinal masses in cats. The study examined thirty confirmed feline intestinal tumors removed at veterinary facilities in the UK from March 2017 to March 2018.  Samples were assessed histologically.

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Seventeen intestinal lymphomas, nine carcinomas, two sarcomas and two mast cell tumors were evaluated. Seven of the nine intestinal carcinomas would have been completely removed with histological margins of 4 cm in oral and aboral directions. Both sarcomas and one mast cell tumor would have been removed in their entirety with 4 cm histological margins in oral and aboral directions. There was extensive and varied microscopic invasion of intestinal tissue away from discrete intestinal lymphomas in most of the cases. Results support the need of histological margins of 4 cm for intestinal masses other than lymphomas.

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Evaluation of the histopathological extent of neoplastic infiltration in intestinal tumors in cats.