New test using a single drop of blood can diagnose most types of cancer with 96% accuracy & may be used soon.

Across 6 different tumor types (pancreatic cancer, colorectal cancer, glioblastoma, breast cancer, hepatobiliary cancer and non-small cell lung carcinoma), the origin of the primary tumor was properly identified with 71% accuracy. The test looks at a specific RNA signature in platelets that are only found in specific types of cancer.