“…PA has shown a correlation with post‐operative complications in individual studies on colorectal cancer, colorectal liver metastases, kidney cancer, bladder cancer, cholangiocarcinoma, and hepatocellular cancer,11, 12, 13, 14, 15, 16 while this effect was not seen in other pancreatic cancer, endometrial cancer, biliary cancer, or sarcoma studies 17, 18, 19, 20. Interestingly, only few cancer studies were able to show a correlation between PA and survival 21, 22, 23. In a small number of non‐cancer studies, decreased psoas muscle area has also been correlated with higher rates of morbidity24, 25, 26 and mortality25, 27, 28, 29 in patients undergoing cardiothoracic, gastro‐intestinal, and spinal surgery.…”