Cancer comes in variants per cell type times the number of ways this cell can mutate. Each of your organs comprises a number of cell types. And for any given ce

Cancer comes in variants per cell type times the number of ways this cell can mutate. Each of your organs comprises a number of cell types. And for any given cell type there is often more than one place in which a mutation can cause cancer (other mutations may be harmless or cause cell death). Each of those different cancers of the same cell type may have it's own characteristic symptoms, progression and treatment. For almost all cancers, there are common treatment options like surgery. External beam radiation can very often be used if the area is targetable. Internal radiation works far less often, but there are some specifics that make some cancers unique there, like Thyroid cells that are susceptible to radioactive iodine. Chemotherapy with cell-division-inhibiting drugs also works, but there differences really start to show, because the various cancer cells have different division rates and susceptibilities to certain inhibitors, making some chemo drug better or worse than another. And then there are some cancers, where very specific treatments may be available, like e.g. antibodies that target those specific cancer cells since they have unique surface features that can be targeted. The more targeted the method the better, since you will have less collateral damage and can use a higher, more potent dose. So superficially, there might seem to be three main options, surgery, radiation, chemotherapy. But even those very common options can have vast differences that aren't always obvious to the layman who just gets to hear about the rough categories of treatments.