What are Benign Tumours?
Hemangioma is the most common type of benign liver tumour. It is an abnormal growth of blood vessels of the liver that begins in the fetus. More than 10% of the normal population has hemanigomas in the liver. Most people with hemangiomas exhibit no symptoms and require no treatment. In rare cases, some hemangiomas may enlarge and bleed in which case they may need to be surgically removed. Hepatic adenomas are benign tumours of liver cells. Most do not cause symptoms and do not require treatment. However, if they are large they may cause pain or blood loss in which case they may need to be removed. Hepatic adenomas occur more frequently in women and seem to be triggered in some cases by the birth control pill or by pregnancy. Focal nodular hyperplasia (FNH) is a tumour-like growth of several cell types. Although FNH tumours are benign, it can be hard to distinguish them from liver cancers.
