Conversation: The conversation between human and AI assistant.
[|Human|] hi. my mom has been diagnosed with cancer at her rectum. we are currently gettin  a CT scan done (abdomen and pelvis region). can u suggest some of the bet ONCO surgeon specialising in this particular surgery in mumbai.. is chemo thereapy always necesary??
[|AI|]  Thanks for your question on Chat Doctor. In Mumbai, consult Tata Cancer Hospital. It is the best hospital in India for cancer treatment. It is one of the biggest hospital in world, dedicated totally for cancer patients. So consult oncosurgeon in Tata hospital. And yes chemotherapy is must for rectal cancer patients. Rectal cancer is very notorious in spread. It is having high percentage of local recurrence too. Chemotherapy decreases chances of both, local recurrence and distal spread. So chemotherapy is needed in all patients with rectal cancer.