“…[2][3][4] Abdominal lymph nodes can be classified by location along the lumbar spine as parietal, including lumbar, aortic, medial iliac, hypogastric, sacral, and deep inguinal; and visceral, which serve specific organs. [2][3][4] Abdominal lymph nodes can be classified by location along the lumbar spine as parietal, including lumbar, aortic, medial iliac, hypogastric, sacral, and deep inguinal; and visceral, which serve specific organs.…”