Benign liver tumours are a heterogeneous group of lesions with different cellular origins, as summarized by an international panel of experts sponsored by the World Congress of Gastroenterology in 1994.
These lesions are frequently found incidentally as a consequence of the widespread use of imaging tests and often have a benign course. Some of these lesions are of greater clinical relevance than others, and the aim of these recommendations is to provide a contemporary aid for the practical diagnosis and management of the more common benign tumours.
These include haemangiomas, focal nodular hyperplasia (FNH) and hepatocellular adenoma (HCA).