30 points!!
Some people have cancer tumors removed, and their cancer never returns. Other people with cancer must be treated with drugs and radiation. Explain why.

Respuesta :

My best explanation is

Some cancer is in blood and tissue and doesn’t form a tumor, such as leukemia. Therefore a usage of “chemotherapy” is needed.

Sorry if this isn’t a good explanation

Depending on the type of cancer and stage it’s in, that alters many variables in treatment. An example, having a cancerous cyst being removed is more likely to remain healthy, than more complex problems like blood which is why leukemia can be fatal.