Lymphadenectomy in Cervical Cancer

Role of Lymphadenectomy by Stage

For stage IA1 without lymphovascular space invasion, the risk of nodal metastasis is <1%, and lymphadenectomy is not required, according to the European Society for Medical Oncology 1
For stage IA1 with lymphovascular space invasion, pelvic lymphadenectomy is recommended in addition to the primary treatment, as suggested by the European Society for Medical Oncology 1, 2
For stages IB1 and IIA1, radical hysterectomy plus bilateral pelvic lymph node dissection is the standard surgical approach, with category 1 evidence from the National Comprehensive Cancer Network 3, 4
Lymphadenectomy in limited disease must include at least the external iliac nodes, with a level of evidence B from the British Journal of Cancer 5, 6

Pelvic lymphadenectomy is considered standard for most stages of cervical cancer, according to the British Journal of Cancer 5, 6
Para-aortic lymphadenectomy should be considered in patients with larger tumors and suspected or known pelvic nodal disease, as recommended by the National Comprehensive Cancer Network 3, 7
In stage IIB disease, lymphadenectomy should be extended to the renal artery level, according to the British Journal of Cancer 5, 6

The number of nodes, upper level of invasion, and bilateral involvement have prognostic value, as reported by the British Journal of Cancer 5, 6

Pelvic lymphadenectomy can be performed by laparotomy, retroperitoneal approach, or laparoscopy, according to the British Journal of Cancer 5, 6
Laparoscopic lymphadenectomy is only recommended if the operator has specific training in this technique, as suggested by the British Journal of Cancer 5, 6

Overly extensive lymphadenectomy in early-stage disease may increase morbidity without clear survival benefit, according to the British Journal of Cancer 5, 6
Sentinel lymph node biopsy is being evaluated but is not yet sufficiently validated for routine use in cervical cancer, as reported by the National Comprehensive Cancer Network 3
Lymphadenectomy enables precise pretherapeutic staging of nodal involvement to define the extent of radiotherapy fields necessary for treatment, according to the British Journal of Cancer 5, 6

Laparoscopic and robotic approaches are increasingly used, with potential advantages including decreased hospital stay and more rapid patient recovery, as reported by the National Comprehensive Cancer Network 8

In locally advanced disease (stages IB2-IVA), the risk of nodal involvement increases substantially, with potential spread to common iliac and para-aortic nodes, according to the National Comprehensive Cancer Network 9

When cervical dye injection is performed for sentinel node mapping, the most common location of pelvic sentinel lymph nodes is medial to the external iliac, ventral to the hypogastric, or in the superior part of the obturator region, as recommended by the National Comprehensive Cancer Network 10, 11