heyyy!
starting off with the benign cancer(s), tumors are classified as malignant.
this is because they stay in their primary location w/o invading other sites of the body.
next, the malignant cancer is lymphatic.
this is malignant because, it has the ability to spread.
the most common cancer will be breast cancer due to the high number of cases documented each year. (200k+ new cases)
the rarest cancer will be hepatoblastoma. this is because there are 50 to 75 new cases. tissues form inside the liver. the cause for its rareness is because the liver is the largest organ in the body.