A simple blood test, reducing or eliminating the need for more invasive procedures, has been developed by the researchers from Purdue University. It will give an opportunity for doctors to monitor a patient's cancer (lat. Carcinoma). The researchers have identified a series of proteins in blood plasma that, when elevated, signify that the patient has cancer. This work was done with samples from breast cancer patients, but it is possible the method could work for any type of cancer and other types of diseases.