Patients with cancer (Clinical, histological, cytological or radiological evidence) planned for surgical resection of a malignancy of the oesophagus, stomach, pancreas, colon, or rectum
Aged 18-years and over
Able to give written informed consent
Patients identified at surgical clinic as being planned for an open abdominal operation for a non-inflammatory, benign condition (e.g. donor nephrectomy)
Aged 18-years and over
Able to give written informed consent
You may not be if
Any concomitant medical or psychiatric problems which, in the opinion of the investigator, would increase the risk of complication for the participant and/or investigator
Presence of a concomitant inflammatory (e.g., rheumatoid arthritis, inflammatory bowel disease) or muscle wasting condition other than cancer
Participants who are pregnant, suffer from claustrophobia or with implanted medical devices (e.g., cardiac pacemaker, metallic foreign bodies, aneurysm clip) would not be able to undergo the additional multiparametric magnetic resonance imaging (MRI)
