Endometrial cancer with positive sentinel lymph nodes: pathologic characteristics of metastases as predictors of extent of lymphatic dissemination and prognosis
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Summary
This summary is machine-generated.In endometrial cancer, positive sentinel lymph nodes (SLNs) with macrometastasis predict widespread disease and recurrence. Extracapsular invasion and older age increase the risk of multiple positive SLNs.
Area Of Science
- Gynecologic Oncology
- Surgical Pathology
- Cancer Metastasis
Background
- Sentinel lymph node (SLN) mapping is crucial in endometrial cancer staging.
- Understanding predictors of lymph node dissemination and recurrence is vital for patient management.
Purpose Of The Study
- To identify predictors of extensive lymph node spread and non-vaginal recurrence in endometrial cancer patients with positive SLNs.
- To analyze the relationship between SLN metastasis characteristics and patient outcomes.
Main Methods
- Retrospective review of 103 endometrial cancer patients with positive SLNs between 2013-2019.
- Classification of SLN metastases by location (extracapsular/intracapsular) and size (isolated tumor cells, micrometastasis, macrometastasis).
- Logistic regression and Cox proportional hazards models were used to assess associations.
Main Results
- Macrometastasis was prevalent (38.8%). Extracapsular invasion and older age predicted multiple positive SLNs.
- Non-SLNs were positive in 47.4% of patients who had backup pelvic lymphadenectomy, more common with macrometastasis.
- SLN macrometastasis, non-endometrioid histology, and cervical stromal invasion independently predicted non-vaginal recurrence.
Conclusions
- Positive SLN macrometastasis is linked to extensive lymphatic spread and distant recurrence in endometrial cancer.
- Extracapsular SLN metastasis and patient age are key factors for multiple positive SLNs.
- Non-endometrioid histology and cervical stromal invasion are independent predictors of non-vaginal recurrence.

