A. Unfortunately, without a physical exam and the results of the blood test, it is not possible to make a diagnosis. Lymph nodes are filter stations of the body and they will filter out bacteria, viruses and dead cells as well as cancer cells. If there is inflammation they will often increase in size. A swelling of the liver can have many causes, viral, bacterial, tumor, inflammatory. I think your vet should rerun blood tests after three or four weeks, and possibly send in some abdominal fluid for an exam, possibly have a specialist do an ultra sound exam of the abdominal cavity.
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