In addition, he said blood tests, which detect cancer, have also come up negative.

It can detect cancers even when they are too small to be felt.

A. That's true, but it would be used to detect cancers at an earlier stage.

The survival rate from a cancer detected and treated in that early stage is nearly 100 percent.

He reported developing a simple blood test to detect cancer in its earliest stages.

These tests are necessary to detect oral cancer early, before it has had a chance to progress and spread.

Today, medical researchers are developing mathematical ways to detect cancer more accurately.

The question, he said, is whether the screening tests are detecting cancers.

A bone scan can detect cancer that has spread to the bones.

He urged everyone to have examinations to detect cancers early.