Most cancers identified by signs or symptoms appear or through screening. Both methods are not leading to a clear diagnosis, which usually requires a biopsy. Some cancers are found accidentally during medical evaluation of unrelated problems.
Because cancer can also be caused by promoter methylation in certain genes, then early detection can be done by testing the genes into biomarkers for cancer. Some types of cancer biomarkers have been known to its methylation status. For example for breast cancer BRCA biomarkers can be used, while for colorectal cancer using the biomarker to Sox17.
Early detection is very important. In some cancers such as colorectal cancer, if known early opportunity to recover greater. In addition, early detection can facilitate physicians to provide appropriate treatment.
Because cancer can also be caused by promoter methylation in certain genes, then early detection can be done by testing the genes into biomarkers for cancer. Some types of cancer biomarkers have been known to its methylation status. For example for breast cancer BRCA biomarkers can be used, while for colorectal cancer using the biomarker to Sox17.
Early detection is very important. In some cancers such as colorectal cancer, if known early opportunity to recover greater. In addition, early detection can facilitate physicians to provide appropriate treatment.
Source: http://id.wikipedia.org/wiki/Kanker
