rectalgia肛部痛rectaladj.直肠的rectal speculum with double blades双翼直肠镜Rectal Cancer root governing skill直肠癌根治术rectal and anal sphincter reflexes直肠肛门抑制反射rectal speculum with triple blades三翼直肠镜Rectal neoplasm/surgical operation直肠肿瘤／外科手术rectal neoplasmsl surgical procedures直肠癌Rectal neoplasms/surgical operation直肠肿瘤／外科手术rectal bladder and abdominal colostomy直肠膀胱结肠腹壁造口术Rectal neoplasms/surgery Anastomosis直肠肿瘤／外科学Rectal Neoplasms/ radionuclide imaging直肠肿瘤／放射性核素显像