Hi, dear I have gone through your question. I can understand your concern. You have adrenal gland tumour and gall stones. cholycystectomy( removal of gall bladder) can be done by laproscopically. But adrenal tumour removal is difficult surgery and it need open surgery. So its not possible to remove both simultaneous by laproscopic surgery. It is easily done by open surgery so go for it. Hope I have answered your question. If you have any doubts then feel free to ask me. I will be happy to answer. Thanks for using health care magic. Wish you a very good health.