I am sorry to hear you have just been diagnosed with a rectal tumour. When you have further details, if you have a chance do share these with us and we can signpost you to useful specific information about your diagnosis.
You've come to the right place though to talk to others who have had a similar diagnosis before. I had a little look around the forum to see if I could find another thread that might be relevant to you and noticed that [@Dusky19] , whose dad had a similar size rectal tumour, posted here so feel free to respond if you wish. It does help to talk to others who have had a similar diagnosis and treatment and I hope that this forum will help you connect with others who are in a similar place and who understand what you are currently going through.
Should you have any specific medical questions once you have more details about your diagnosis, don't hesitate to give our nurses a call on this free number 0808 800 4040 - their line is open Monday to Friday from 9am to 5pm.
I hope you find out more soon about your treatment plan.
