Vinegar test spots hidden cancer in real time

This study tested a new way to spot cancer in people with Barrett's esophagus, a condition that can lead to esophageal cancer. Doctors sprayed a weak vinegar solution on the esophagus and timed how long the tissue stayed white. They found that cancerous or pre-cancerous areas lost the white color at a different rate than healthy tissue. The goal was to make it easier to tell which spots need treatment, without taking extra biopsies.