What is the treatment for FNH?

Surgery to treat focal nodular hyperplasia If the FNH is large, surgeons may remove the tumor. In partial hepatectomy surgery, or resection, surgeons extract the tumor and a small part of the tissue around it.

Can FNH turn malignant?

FNH has no malignant potential, is rarely symptomatic and surgical intervention is almost never required. However, eight patients with a diagnosis of FNH associated with upper abdominal pain or rapid growth were referred for surgery.

What causes FNH tumors?

Liver hemangiomas and FNH have no known cause. The exact cause of liver adenomas is not known either but there is a significant association between adenomas and oral contraceptive use. For this reason, adenomas are most commonly diagnosed in women of child bearing age.

How common is FNH?

Focal nodular hyperplasia is often an incidental finding, and its prevalence in the general population has been estimated at 0.9–3.0% [3,4].

Does alcohol cause FNH?

Focal nodular hyperplasia (FNH) and liver cell adenoma (LCA) are benign hepatocellular tumors, found mainly in females in association with the use of oral contraceptives. In adult male clinical patients and in retrospective male autopsy cases, both tumors were often found in association with chronic abuse of alcohol.

What size liver lesion is considered large?

Recent work indicates that with colorectal liver metastases, careful MRI or CT should detect 95% or more of lesions larger than about 15 mm. The real issue now is the accuracy of detection for lesions smaller than this.

Can focal nodular hyperplasia come back?

FNH typically presents as a single lesion in 70% of cases and generally does not progress to malignancy or recur after resection.

What causes FNH to grow?

The underlying mechanism of FNH formation is thought to be due to a vascular malformation and injury [5]. Patients do not have an underlying liver disease and are mostly asymptomatic [6]. With the current availability of highly sensitive imaging techniques, FNH is diagnosed more often as an incidental lesion.

Does FNH cause weight gain?

The diagnosis FNH was confirmed by the two radiologists in all cases. In 160 patients, the diameter measurements from the first (T1) and last (T2) radiological reports were examined, and in 28 patients (18%), an increase in size was found.