Hiya. 
I've not had any issues with colon cancer -but the cancer process is similar.

Questions regarding surgery

Lentgh of surgery (hours sedated) 

scar size ? Keyhole or open?

recovery time ? 

when can you drive again? Back to work again ?  
 

Treatment plan? 
chemo ?  Then anything else ? medication ? 
What type of chemo drugs -lots of different types -side effects similar 

any other option ? 
declining treatment ? 
survival rates ? Recurrence

Ask why wasn't the inflammation flagged up. Or is that why he's had three scans?? 
 

Hope I haven't bamboozelled You. 
 

write down any questions you need to ask and maybe take some notes to remind you.

information overload

Go with him for his appoitments -often hearing first hand is better than him going in alone.

keep us posted with his journey

best of luck

Efffie x