Benign liver lesions are non-cancerous abnormalities found in the liver. These are very commonly found by coincidence, often on scans done for other things like gallstones, kidney stones, abdominal pain, or for heart or lung conditions.

Benign liver lesions include cysts, haemangioma, focal nodular hyperplasia, adenoma, focal fatty sparing, and others. Most have no potential to turn into cancer, but some do. Some of these lesions may be observed (“surveillance”) through scans, while others may be safely ignored. Surgery or other intervention may be needed if there is doubt about the diagnosis, concern about risk of malignant change, or if they cause symptoms.