All of the following investigations are used in FIGO staging of carcinoma cervix, EXCEPT:

CT scan of abdomen and MRI of pelvis are used to provide additional information for treatment and is not used for staging of cervical carcinoma. Investigations used for staging of cervical carcinoma according to FIGO are: Mandatory for staging: Speculum, vaginal and rectal examination Intravenous pyelogram Abdominal ultrasound Supplementary for staging: Cystoscopy Proctoscopy Cone biopsy Endocervical curettage or smear Chest X ray Skeletal X ray or bone scan The FIGO classification which is based on tumor size and extent of spread of disease in the pelvis and distant organs is recommended for staging invasive cervical cancer. Ref: Comprehensive Cervical Cancer Control: A Guide to Essential Practice page 170.