bowel

During immune escape, bowel cancer cells disrupt the genes that normally allow the body's immune defenses to recognize them as a threat.

In the bowels of a building at a London university, a curious professor opens a turquoise door that reads “Map Room.”

"These appeared to be in separate parts of bowel adhered together due to magnetic forces," they said.

When combined with breast, bowel and cervical screening it increased the number of cancers detected overall seven-fold.

The charity estimates the programme would cost £25 million a year - or about £18 per patient - similar to bowel and breast cancer screening.