Has anyone seen anything like this?

Has anyone seen something similar? It’s movable and soft. We got an ultrasound and the radiologist stated it wasn’t a cyst but nothing more. All he put was that it was a mass which we already knew. We were sent to CT with contrast by his doctor and they didnt give him anything to relax him so he moved the entire time and now he can’t have anymore contrast for 12 hours and it’s already out of his system so they can try again. We are having to come back to the ER once the 12 hours is up but in the meantime I want my mind eased :( doctor said she’s never seen anything like it and doesn’t suspect it’s a lymph node (not even close to where 1 would be) and doesn’t suspect an abscess. He has had it about 4 months and it’s gotten larger. He is 1 yr 9 months.