<prompt> Histopathology of staging laparotomy done for carcinoma endometrium reveals more than 50 myometrium invasion with vaginal involvement, parametrial involvement but no pelvic and paraaoic lymph node involvement. What is the Stage of Ca Endometrium ?III BIII AIII C1III C2  <response>: FIGO staging system for Ca Endometrium Stage Ia Tumor contained to the corpus uteri IA No or less than half myometrial invasion IB Invasion equal to or more than half of the myometrium Stage II Tumor invades the cervical stroma but does not extend beyond the uterusb Stage IIIa Local and or regional spread of tumorc III A Tumor invades the serosa of the corpus uteri andor adnexas III B Vaginal andor parametrial involvement III C Metastases to pelvis andor para-aoic lymph nodes III C1 Positive pelvic nodes III C2 Positive para-aoic lymph nodes with no without positive pelvic lymph nodes Stage IVa Tumor invades bladder andor bowel mucosa andor distant metastases IVA Tumor invasion of bladder andor bowel mucosa IVB Distant metastases, including intra-abdominal metastases and or inguinal lymph nodes aInclude grades 1,2, or 3 bEndocervical glandular involvement only should be considered as stage I and no longer as stage II. cPositive cytology has to be repoed separately without changing the stage. 