My dad, 65 years old, had an endoscopy and results and stomach biopsy results revealed diffused high grade dysplasia with no malignancy. He also had a CT scan a month after which was all normal. He is now booked for another consultant led endoscopy with a further biopsy to be taken. Could you please advise as wanted to know what could be the treatment options here to avoid this developing into stomach cancer as precancerous cells suggest that this could happen.