Tumor markers are biochemical indicators that are used to detect or chek presence of cancers generaly. these biochemical indicators are abnormal molecules secreted by the tumor celssand they are included surface anitigens, cytoplasmic proteins, enzymes and hormones.
These markers are measured from the serum and are used in screening tests of the population to evaluate presence of cancer. These markers are also important in supporting diagnosis of cancers. And also in addition they are used in monitoring response of the therapies and the detection of recurrence.
There are numerous tumor markers that have been described and I will talk about now the most important or clinaclly used ones of tumor markers and the others on the table