<Tr> <Th> MeSH </Th> <Td> D009369 </Td> </Tr> <Tr> <Td_colspan="2"> (edit on Wikidata) </Td> </Tr> <P> This is a list of cancer types . Cancer is a group of diseases that involve abnormal increases in the number of cells, with the potential to invade or spread to other parts of the body . Not all tumors or lumps are cancerous; benign tumors are not classified as being cancer because they do not spread to other parts of the body . There are over 100 different known cancers that affect humans . </P> <P> Cancers are often described by the body part that they originated in . However, some body parts contain multiple types of tissue, so for greater precision, cancers are additionally classified by the type of cell that the tumor cells originated from . These types include: </P>

How many different type of cancer are there