Hi TomR1

well done on finishing your treatment and getting good news on your scan post treatment 

i wouldn’t worry too much. Normal process after any cancer treatment is that you will remain under the care of the team that treated you during your diagnosis and treatment 

usualy you are monitored for a period of a few years ( every area has different time frames for different cancers) but the telephone consultation is for your benefit and gives you opportunity to discuss that your still well and if you have any concerns they can be discussed and investigated if necessary and aids the team to monitor your health / progress 

so basically it’s follow up care for you to address any worries so that any changes are acted on quicker,  rather than going to your GP and having to go through the process again and suffering the long waiting  time's to be seen.  Any concerns are addressed straight away 
your consultant will also do periodic tests and/or scans during the period of monitoring to ensure all is still well 

I wish you all the best going forward