Cancer is a disease, or rather a set of diseases, of genetic origin, which are characterized by having an altered and atypical division of cells; and which in turn can expand or invade other tissues.
Usually the cells divide to form new cells in a controlled way. This is how our body grows and is repaired. Each time the cell divide a new copy of the genome is generated, and each copy can generate errors, which are known as mutations. Most of the time these errors are repaired, but sometimes they can remain and accumulate. Mutations in key genes can lead to an uncontrolled division of cells, forming a cell mass that can become a tumor. In the case of blood cancer, as is the case of leukemia, there is no tumor formation. It can also be a benign tumor, in which it is not classified as a carcinogen. The difference is that the benign tumor does not expand or invade other tissues.
Through genomics, cancer-related mutations can be analyzed, which opens doors in screening, diagnosis, personalized treatments and in the calculation of risk.