Headaches and cases of epistaxis, or nosebleeds, are common. Nosebleeds occur due to burst or broken blood vessels in the nose. Having a headache and a nosebleed can be a sign of a minor issue, such as hay fever, or something more severe, such as anemia, or a low red blood cell count. Advertisement.
There is a tumor marker for some cancers of the colon; it is known as carcinoembryonic antigen, or CEA.Unfortunately, this protein may be made by other adenocarcinomas as well, or it may not be produced by a particular colon cancer.here is a tumor marker for some cancers of the colon; it is known as carcinoembryonic antigen, or CEA.
Tumor markers may also be measured periodically during cancer therapy. A decrease in the level of a tumor marker or a return to the markerâs normal level may indicate that the cancer is responding to treatment, whereas no change or an increase may indicate that the cancer is not responding.here is no âuniversalâ tumor marker that can detect any type of cancer. There are some limitations to the use of tumor markers. Sometimes, noncancerous conditions can cause the levels of certain tumor markers to increase.