Testicular cancer - CT found nodule?

Hi 

my husband has his appointment today and confirmed he needs his operation to remove his testical next week due to a tumour.

however the consultant and nurse mentioned on the CT they found a lung nodule but also said enlarged lymph node (just 1) which I believe are two different things? is this correct? both used different terminology at different times so now we are confused which it is. 

also they have said that they will do another CT scan as it’s not clear what this was (whether it has spread) or just nothing. Is 3 months the normal to wait for a rescan as we are worrying it’s the cancer that has spread.

Thank you