Surgery for Cancer after previous Bariatric Surgery

Bariatric surgery has evolved over the years from nonreversible procedures that focused on malabsorption to the more patient-friendly restrictive procedures, as well as hybrid procedures. There is sufficient evidence in literature to indicate that obesity is a risk factor for abdominal malignancies. While it is postulated that these risks may reduce after successful bariatric surgery, the risk that the process of carcinogenesis may have already commenced leading to the malignancy presenting at variable periods after the surgery is real. This chapter provides the most updated evidence for the diagnosis and surgical management of abdominal malignancies presenting following bariatric surgery while acknowledging areas of paucity of data and the need for awareness amongst clinicians when interpreting symptoms in this unique subset of patients.