Hi, dear I have gone through your question. I can understand your concern. He may have benign or malignant liver tumor or some other disease. Endoscopy is not diagnostic for that. He should go for complete liver function test and ultrasound abdomen. If ultrasound abdomen shows any mass lesion in liver then biopsy should be done. It will give you exact diagnosis. Then you should take treatment accordingly. We can not says its hepatocellular carcinoma or hepatoma or other pathology from this finding. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using health care magic. Wish you a very good health.