Hello, Thanks for posting on HCM, Based on the above description, there are several diseases which could be responsible for an enlarged liver (hepatomegaly) alone. I will present from the most common (given your age) to the least common. It would have been easier for me, if you sited any risk factors you might be having such as alcohol, presence of viral hepatitis, smoking etc. Inflammation or fatty liver may cause an enlarged liver and may result from: - An infection such as a from a virus or abscess - Certain medications - Toxins - Certain types of hepatitis, including alcoholic hepatitis - Autoimmune disease - Metabolic syndrome - Genetic disorders that cause fat, protein, or other substances to build up Abnormal growths may cause an enlarged liver. This may result from: - Cysts - Tumors that start or spread to the During a physical exam, your doctor can detect an enlarged liver on the right side of your abdomen. A variety of tests may also be needed to confirm the cause of an enlarged liver, including: - Blood tests to check for liver enzymes and other abnormalities related to liver disease - CT scan, magnetic resonance imaging (MRI), or ultrasound to view the liver - ERCP, a scope test to check for problems in the bile duct - MRCP, a special MRI test to check the inside of the bile duct - Liver biopsy, an examination of a sample of liver tissue to check for cancer or a fatty liver Ones the cause is determine, appropriate treatment can be initiated. Hope this helps