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Updated: Jun 3, 2026
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Sentinel Lymph Node Mapping and Biopsy for Endometrial Cancer at Early Stage with Laparoscopy
Published on: August 19, 2021
Ovarian sentinel node: is it feasible?
Reita H Nyberg1, Pasi Korkola, Johanna Mäenpää
1Department of Obstetrics and Gynecology, Tampere University Hospital, Tampere, Finland. reita.nyberg@pshp.fi
Summary
The combined injection technique successfully identified ovarian sentinel lymph nodes in 94% of high-risk uterine cancer patients. This method accurately locates key nodes for potential early ovarian cancer detection.
Area of Science:
- Gynecologic Oncology
- Surgical Pathology
- Nuclear Medicine
Background:
- Sentinel lymph node biopsy is crucial for staging gynecologic cancers.
- Accurate identification of ovarian sentinel nodes is challenging.
Purpose of the Study:
- To assess the feasibility of an intraoperative combined injection technique for ovarian sentinel node localization.
Main Methods:
- Technetium isotope and blue dye were injected into the ovaries of 16 high-risk uterine cancer patients during laparotomy.
- Pelvic and para-aortic lymphatic areas were examined for sentinel nodes.
Main Results:
- Sentinel nodes were identified in 94% of patients (15/16).
- All identified sentinel nodes (n=30) were located in the para-aortic region.
- Left ovarian nodes were predominantly above the inferior mesenteric artery; right ovarian nodes were below it.
Conclusions:
- The combined intraoperative injection technique is effective and rapid for identifying ovarian sentinel nodes.
- Sentinel nodes demonstrate consistent lymphatic drainage patterns.
- The sentinel node concept warrants further investigation for early ovarian cancer management.
