Blood test. This could also show chemicals that the tumors release. To treat carcinoid syndrome, your doctor will need to treat your tumors. You could have just one treatment or a combination of them.

Blood and urine tests. Your doctor takes samples of both and tests them for hormones and other substances that carcinoid tumors release, such as serotonin or 5-HIAA. Upper endoscopy. A thin ...

Often, these tumors are detected during surgery or in an exam for another condition. However, there are tests that can be used to detect carcinoid tumors, including: If small carcinoid tumors have ...

A circulating tumor DNA (ctDNA) blood test demonstrated high sensitivity and specificity for colorectal cancer (CRC) detection in a large average-risk population, study finds.

Around four years ago, now 77-year-old John Gormly went for what was supposed to be a routine blood test. But the results were life-changing. The test suggested Gormly had colon cancer ...