Cancer is a complication of cellular injury to the body.
This can result from exposure to toxic chemicals (drugs or food additives, pesticides, etc.) or other contaminants, radiation or electromagnetic exposure, etc., over short of long periods of time, and other forms or sources of prolonged or relentless stress, particularly of the emotional or traumatic variety.
This almost always results from a breakdown of the immune system to fight off pathogenic diseases, such as cancer.
Many different organs of the body can be affected, and there are therefore many different names for "types" of cancer, depending on which organs or areas become cancerous.
Cancer is the same in any case, and its cures will also be the same, provided they can reach those areas or organs effectively, and in sufficient quantities quickly enough to make a difference.