An unusual case of left hepatectomy for Focal Nodular Hyperplasia (FNH) linked to the use of Anabolic Androgenic Steroids (AASs).

•This is an unusual case of left hepatectomy for FNH.•Focal Nodular Hyperplasia(FNH), is the second most common benign tumor of the liver.•In our case the young patient was taking several herbal products and dietary supplements including anabolic androgenic steroids (AASs).•We have reported a rare case of left hepatectomy for FNH. We suppose that the increasing of the lesion, in two years in which the patient made use of anabolic steroids. Hormonal conditioning of these lesions is known, under use of oral anabolic steroids being proved the increase in volume of FNH. This could be the explanation for increasing of nodule.