Question: how long does a dog live after being diagnosed with liver cancer?
Answer: Treatment and Prognosis Dogs that have had massive liver tumors removed have a good prognosis, and may live for years past the operation. Some malignant tumors cannot be removed. Nodular or diffuse HCC tumors and tumors from a metastasized cancer, unfortunately, have a poor prognosis (usually allowing only 3-6 months).