Poor guy! You may want to get a second opinion on the surgery. Even after removal of adrenal gland, part of the pancreas, your guy will need to be on meds. We generally get the insulinoma under control and treat the adrenal with monthly Lupron Depot. After the insulinoma is under control, we then get him/her an annual Deslorelin Implant. My vet doesn't remove the spleen. We just have to be very careful that he doesn't jump, etc & burst it. Other vets do remove the spleen & follow up with meds. Good Luck Kait! Katie & Kids in KC [Posted in FML 7349]