Abstract:

In 2018, the International Federation of Gynecology and Obstetrics (FIGO) updated cervical cancer staging, defining pre-treatment imaging diagnosis of pelvic lymph node metastasis as stage ⅢC1r and paraaortic lymph node metastasis as stage ⅢC2r. Preoperative imaging assessment of pelvic and abdominal lymph node metastasis is related to the formulation of treatment plans, and accurate imaging judgment of pelvic and abdominal lymph node status can clarify the stage and allow patients to receive standardized treatment. There are many imaging methods in clinical practice, including ultrasound, magnetic resonance imaging (MRI), computed tomography (CT), positron emission tomography (PET)/CT and PET/MRI. Ultrasound is economical and convenient, but the detection rate of lymph nodes is too low. CT is widely used, with fast examination speed and large scanning range, which makes clinical application easy to promote, but the lack of uniform diagnostic criteria for CT diagnosis makes the diagnostic value not outstanding. MRI has good tissue resolution and can realize functional imaging at the same time, but the sensitivity of examination is not high. The accuracy of PET examination is higher than other imaging examinations, but its sensitivity is not statistically different from that of MRI and CT examination.

Key words: Uterine cervical neoplasms, Lymphatic metastasis, Lymph nodes, Neoplasm staging, Ultrasonography, Tomography,X-ray computed, Magnetic resonance imaging, Positron-emission tomography