Did not know what to expect to be honest but a weird procedure none the less, in principle the same as a CT scan but they inject you with a radioactive tracer that shoots around the body and shows if the cancer has spread to other areas of the body in three dimension. It’s a bit scary when they come in the room to inject you holding a lead box and a radioactive beeper attached to them that goes mad when they administer it!
More worrying is the leaflet afterwards telling you (men) to sit down for a pee for a number of hours after the scan due to you passing radioactive pee! I did try and pee with the light off but it did not glow!! 🙂