retroperitoneal lymph nodes
Lymph nodes located behind the peritoneum along major blood vessels, important in gynecologic cancer staging and treatment.
Full Definition
Retroperitoneal lymph nodes are collections of lymphatic tissue situated in the retroperitoneal space, posterior to the parietal peritoneum. In gynecologic oncology, the most clinically significant groups include para-aortic and paracaval lymph nodes that extend from the renal vessels to the bifurcation of the common iliac vessels. These nodes serve as important drainage pathways for ovarian, cervical, and endometrial cancers, and their involvement significantly affects cancer staging and prognosis. Surgical assessment of retroperitoneal lymph nodes through systematic lymphadenectomy is a critical component of comprehensive staging procedures for many gynecologic malignancies.
Usage
Usage note: Specify anatomical location (para-aortic, paracaval) when relevant. Important for staging.
In Context
- "Complete para-aortic lymphadenectomy revealed no metastases in retroperitoneal lymph nodes." — Operative report
- "CT imaging showed enlarged retroperitoneal lymph nodes suspicious for malignancy." — Radiology report