What Is Focal Nodular Hyperplasia?
Focal nodular hyperplasia is a type of benign tumor that appears in the liver. Most people with the condition do not experience any adverse symptoms, and the tumors are usually only discovered when patients receive diagnostic imaging tests for other health problems. Focal nodular hyperplasia does not turn malignant and rarely grows large enough to create any lasting problems. When a tumor is detected, however, doctors usually conduct careful screenings to ensure that it is not a similarly shaped cancerous mass called hepatocellular carcinoma.