Lymph Nodes Iliac External

External iliac lymph nodes (n. l. iliaci externi, pna) - a group of lymph nodes located along the outer edge of the iliac vessels. They drain lymph from the external genitalia, lower part of the anterior abdominal wall, gluteal region and lower extremities. Lymphatic vessels from these areas pass through the inguinal canal and empty into the external iliac lymph nodes. After passing through these lymph nodes, the lymph is sent further to the common iliac lymph nodes. Thus, the external iliac lymph nodes play an important role in draining lymph from the lower half of the torso and lower extremities.



The iliac and external lymphatic nodes are one of the important parts of the lymphatic drainage system, located on the inside of the thigh and outside the knee. They play an important role in protecting the body from infections, and are also involved in metabolism and blood. The main functions of the liachtic nodes are the collection of waste that enters the bloodstream, the production of antibodies that neutralize bacteria and viruses, and also active participation in tissue immunity.

The iliac lymph nodes are divided into external and internal. The lymphatic infravillus external nodes are located on the lateral sides of the thigh, external to the tibia, and internal to the umbilical cord vessel. These nodes have a diameter of 3 to 10 mm and are covered with connective tissue, which provides them with better protection from mechanical damage. In turn, in the lymphatic subvical internal nodes, blood is collected and purified, entering the veins located above the coccygeal skeletal system. These internal subtemporal lymph nodes are also surrounded by connective tissue and are located inside the osteoarticular apparatus of the coccyx.

Lymphatic submilitary and external nodes can be inflamed in various infectious diseases, such as erysipelas, colds or tonsillitis, as well as in inflammatory processes in the pelvic organs. Inflammation of the subvisual and external lymph nodes may be accompanied by pain, increased body temperature and other symptoms of intoxication. Rarely, but still there are malignant neoplasms in these nodes.