It's not common in the sense that any significant %age of people have it done, but it's not unusual and there are numerous private medical screening facilities

It's not common in the sense that any significant %age of people have it done, but it's not unusual and there are numerous private medical screening facilities that do it for a fee. I had one done two years ago as part of a full body medical and plan to do so every two years or so in order to detect changes over the years (I was willing to take the risk of things being discovered during the first scan).