Cancer has spread beyond the uterus but not onto the pelvic wall (the tissues that line the part of the body between the hips) or to the lower third of the vagina. Stage II is divided into stages IIA and IIB, based on how far the cancer has spread. In stage IIA, cancer has spread beyond the cervix to the upper two thirds of the vagina but not to tissues around the uterus. Stage IIA is divided into stages IIA1 and IIA2, based on the size of the tumor. In stage IIA1, the tumor can be seen without a microscope and is not more than 4 centimeters. In stage IIA2, the tumor can be seen without a microscope and is more than 4 centimeters. In stage IIB, cancer has spread beyond the cervix to the tissues around the uterus but not onto the pelvic wall.