What Is Focal Nodular Hyperplasia?

Focal nodular hyperplasia (FNH) is a rare benign tumor-like lesion. Clinical diagnosis is extremely difficult and is easily confused with primary liver cancer and adenoma. Some patients are even treated as hepatocellular carcinoma by percutaneous transcatheter arterial chemoembolization, which causes unnecessary pain to patients. Focal nodular hyperplasia of the liver. The main pathological feature is a star-shaped scar with radial fibrous separation in the center of the lesion. It is more common in young women, most of them are single, and the ratio of male to female is 2.3: 1. Due to the lack of typical clinical manifestations, imaging characteristics and specific serological examinations, clinical diagnosis is very difficult. The disease is not likely to be malignant, and generally does not require treatment. Only when the diagnosis is unclear and symptoms are present, surgical resection is required.