Focal nodular hyperplasia associated with a giant hepatocellular adenoma: A case report and review of literature

BACKGROUNDFocal nodular hyperplasia (FNH) and hepatocellular adenoma (HCA) are well-known benign liver lesions. Surgical treatment is usually chosen for symptomatic patients, lesions more than 5 cm, and uncertainty of diagnosis.CASE SUMMARYWe described the case of a large liver composite tumor in an asymptomatic 34-year-old female under oral contraceptive for 17-years. The imaging work-out described two components in this liver tumor; measuring 6 cm x 6 cm and 14 cm x 12 cm x 6 cm. The multidisciplinary team suggested surgery for this young woman with an unclear HCA diagnosis. She underwent a laparoscopic left liver lobectomy, with an uneventful postoperative course. Final pathological examination confirmed FNH associated with a large HCA. This manuscript aimed to make a literature review of the current management in this particular situation of large simultaneous benign liver tumors.CONCLUSIONThe simultaneous presence of benign composite liver tumors is rare. This case highlights the management in a multidisciplinary team setting.