Thank you for the query.
Polyps are quite common large intestine tumors. Most of them are benign and wont ever become a cancer. But every polyp brings a risk of cancer and you never know either it will become malignant or not. That is why every large intestine polyp should be removed and send to histopathology.
Ulcer in terminal ileum
is not a very common finding so you never know what expect. Lesions in this part of intestine (like ulcers) can indicate Cronh`s disease, and it does not sound like a cancer. But all of this is just a theory, and the best answer you will get from histopathology.
Hope this will help.