My fiancé was diagnosed with stage 4 Lymphoma last month and has cancer in different parts of his body. From my understanding, Lymphoma is a blood cancer, but it’s also in his liver, which is an organ. The doctors did tests to see if he had any in his bones, but he did not. I’ve tried asking the doctors and they tried to tell me it’s in the lymph nodes, and lymph nodes are all over the body. I don’t really know what lymph nodes are and they seemed really busy so I didn’t want to continually hold them up.
The way I thought our bodies worked was that each cell basically had one job. When we get cancer, one cell is defective and divides more than it is supposed to and creates a mass. From my understanding, all the cells in the mass are related to the one defective cell and shouldn’t influence cells with different jobs. They are just taking up extra space. How then does cancer get into organs and bones? Are those cancer cells still descendants of the original defective cell and just taking up residence in other parts of the body? Or are they communicating somehow with other cells and convincing them to behave in a similarly destructive way, making the cancer in the organs/bones different from the original?
In: Biology
Cells often break off of the cancer mass and travel through the bloodstream to other organs. Certain organs are more likely than others to host malignancies.
In the case of lymphomas, the affected cells may already be free-floating within the lymphatic system. The lymphatic system you could think of as a different kind of blood that flows along its own network of vessels throughout the body. (That’s a big oversimplification, but essentially correct.)
Metastatic cancer—that is, cancer that has traveled and settled in a different organ or body area—is still the same kind of cancer. Biopsies can reveal the original source of the cancer. However, it’s also possible, though very rare, for someone to have more than one cancer at the same time. You’re right that metastatic cancer is still the “child” of the original tumor type.
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