Stage IIIB endometrial cancer shown in a cross-section drawing of the uterus, cervix, fallopian tubes, ovaries, and vagina.  Cancer is shown in the endometrium of the uterus, the parametrium, the cervix, and the vagina.
Stage IIIB endometrial cancer. Cancer has spread to the vagina and/or to the parametrium (connective tissue and fat around the uterus and cervix).