Fig. 1

MRI before receiving treatment: A cervical occupation (arrowed), measuring about 4.5*4.6*4.8 cm, involving the external cervical os and poorly demarcated from the vagina; B an enlarged lymph node shadow is seen on the right side of the pelvic wall (arrowed); the right pelvic segment of the ureter is involved with fluid retention (arrowed). PET-CT before receiving treatment: C the cervix is significantly enlarged in size and metabolic activity, the lesion is poorly demarcated from the pelvic segment of the right ureter, with dilated ureter and renal pelvis hydronephrosis at its upper end; D metabolic activity of lymph nodes on the right side of the pelvic wall is increased, and metastasis is considered