Metastatic neoplasia of omentum tissue, canine

Malignant tumour formation on one of the two layers of omentum, the tissue lining the abdominal cavity. The tumour has implanted via the peritoneal cavity, which is the space between these two tissues layers. The tumour is likely to have metastasised (spread) from an ovarian or pancreatic carcinoma, a cancer which forms from the cells lining these organs.