A 59-year-old woman was diagnosed with squamous cell carcinoma of the cervix. An internal examination and transvaginal ultrasonography indicated a mass larger than 4 cm. The initial diagnosis was stage IB2 cervical cancer, as there was not any clear invasion of the uterine parenchyma apparent in the examination. However, due to the size of the mass, it was suspected that an interior examination might not have fully detected its extent. After preoperative chemotherapy, the plan was to proceed with a radical total hysterectomy. Should an MRI reveal parametrial invasion, the surgery would exclude nerve preservation on the affected side, retaining it solely on the side without parametrial invasion. The question remains of how to accurately determine the presence or absence of parametrial invasion using an MRI.