What types of benign liver tumors and cysts are common?

Ajay K. Sahajpal, MD
Transplant Surgery

The most common benign liver tumors are:

  1. Hemangioma: benign blood vessel tumor. No cancer risk and rarely rupture.
  2. Focal Nodular Hyperplasia: benign tumor of liver tissue, no cancer risk and rarely rupture
  3. Adenoma: benign glandular tumor has cancer risk over time if large and risk of rupture as size grows beyond 4cm.

All of the above are considered hormone sensitive such as to estrogens, particularly adenomas.

Cysts are typically simple and rarely a cystic tumor known as a cyst adenoma can be present. These have a small risk of cancer.

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