![]() ![]() Parietal pelvic lymph nodes Inguinal lymph nodes Efferent pelvic lymphatic vessels empty filtered lymph into nearby greater lymph nodes in an effort to return lymph to the thoracic duct and back into the bloodstream. Lymph nodes of the pelvis receive lymph from pelvic viscera via afferent lymphatic vessels and function to filter harmful substances such as bacteria, viruses, parasites, and other foreign material. Pelvic lymph nodes are highly connected through afferent and efferent pelvic lymph vessels. For example, iliac lymph nodes are clustered around the internal, external and common iliac arteries. Similar to other lymph nodes around the body, pelvic lymph nodes are typically named according to the structures in which they surround. Lymph vessels from pelvic viscera either drain to the visceral lymph nodes or directly to the parietal pelvic lymph nodes. Visceral lymph nodes are associated with pelvic viscera and include the paravesical lymph nodes of the bladder, parauterine, paravaginal and pararectal lymph nodes. Parietal pelvic lymph nodes include the common, external and internal iliac lymph nodes, as well as lumbar and inguinal lymph nodes. ![]() Pelvic lymph nodes can generally be divided into parietal and visceral lymph nodes. Visceral lymph nodes: Receive, filter and transport lymph drainage from surrounding pelvic viscera to parietal pelvic lymph nodes. Parietal lymph nodes: Receive, filter and transport lymph drainage from surrounding pelvic lymph nodes and viscera towards the thoracic trunk and back into the bloodstream. Pararectal lymph nodes → External iliac lymph nodes, internal iliac lymph nodes ![]() Paravaginal lymph nodes → External iliac lymph nodes, internal iliac lymph nodes, superficial inguinal lymph nodes Parauterine lymph nodes → External iliac lymph nodes, internal iliac lymph nodes Paravesical lymph nodes of bladder → External iliac lymph nodes, internal iliac lymph nodes Preaortic lymph nodes → Right lumbar trunk Left lateral aortic lymph nodes → Right lumbar trunk Right lateral aortic lymph nodes → Right lumbar trunk Gluteal lymph nodes → Common iliac lymph nodesĬommon iliac lymph nodes → Lateral aortic lymph nodes ![]() Lateral sacral lymph nodes → Lumbar lymph nodes Internal iliac lymph nodes → External iliac lymph nodes/common iliac lymph nodes Superficial inguinal lymph nodes → External iliac lymph nodesĭeep inguinal lymph nodes → External iliac lymph nodesĮxternal iliac lymph nodes → Common iliac lymph nodes WHERE ARE LYMPH NODES LOCATED SERIESKey points about the pelvic lymph nodes and vessels DefinitionĪ series of parietal and visceral interconnected lymph nodes and lymph vessels which drain lymph from the pelvic cavity This article will discuss the anatomy and function of the pelvic lymph nodes. All lymph drained from the pelvic region is returned to the venous circulation via the thoracic duct, which empties its contents in or around the junction of the left internal jugular and subclavian veins.įamiliarity with the pelvic lymph nodes and lymphatic drainage pathways is of great importance for staging and grading pelvic tumors. Generally speaking, lymphatic drainage of the pelvis mirrors the pathway of venous drainage, with the exception of the external iliac lymph nodes. Lymph nodes of the pelvis function to receive, filter and transport lymphatic fluid from surrounding pelvic lymph nodes and viscera towards the thoracic duct and back into the bloodstream. Lymphonodi pelvici, Nodi lymphatici pelvici ![]()
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