Liver Tumor (Hepatocellular Adenoma) in Cats

Hepatocellular Adenoma in Cats

Hepatocellular adenoma is a benign tumor involving the liver cells. It stems from an over-growth of epithelial cells, which are used for secretion in the body. Fortunately, this type of tumor is very rare in cats.

Symptoms and Types

Mostly no symptoms are obvious in affected animals, though a rupture of a tumor mass may result in blood accumulation in the abdomen. The following are symptoms of hepatocellular adenoma in cats:

  • Weakness
  • Abdominal pain
  • Vomiting
  • Poor appetite


The exact cause is currently unknown.


Your cat’s veterinarian will take a detailed history from you and perform a complete physical examination. Routine laboratory testing includes a complete blood count, biochemistry profile, and urinalysis, where results are usually normal. In few animals these results may show anemia and abnormally high levels of liver enzymes. Radiographic studies may show a mass in the liver. Similarly, ultrasonography helps in diagnosis, revealing masses, hemorrhage, and other abnormalities.

Your veterinarian will also take a small sample of the tumor mass under ultrasound guidance. After processing, your veterinarian will observe the sample under a microscope to confirm the diagnosis. 


An in-depth examination of the properties of urine; used to determine the presence or absence of illness


Extreme loss of blood


Not being able to cause harm; the opposite of malignant.


A condition of the blood in which normal red blood cell counts or hemoglobin are lacking.


To remove by surgical methods

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