There are two main types of cancerous liver tumors in dogs: primary and metastatic. Primary cancers develop directly in the liver, metastatic tumors spread from other cancerous organs or systems. Metastatic cancer is more common than primary.
Liver Tumor Removal
Primary liver tumors are often solitary masses and should be removed whenever feasible. Even if the tumor has spread throughout the liver, removal is possible and the prognosis guardedly good. Up to eighty percent of the liver can be removed without harm to the dog. If there is healthy tissue remaining after surgery, the liver will regenerate.
Benign liver tumors are not life threatening, but should be removed to prevent growth that could impact other organs.
Follow Up Care
Follow up care includes regular veterinary checkups and close monitoring of the dog for recurrence. Symptoms include loss of appetite, lethargy, vomiting and abdominal swelling.
Liver tumors are closely associated with environmental factors such as exposure to toxins and cancer causing chemicals. Tumors are more common in dogs over the age of ten and females are slightly more at risk than males.