Stage II includes: II (T2, N0, M0); IIA (T2a, N0, M0); IIB (T2b, N0, M0). T2: Cervical carcinoma invades beyond uterus but not to pelvic wall or to lower third of vagina. T2a: Tumor without parametrial invasion. T2b: Tumor with parametrial invasion. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 6th ed.) [from NCI]