The Iliopsoas bursa, also known as the iliopectinate bursa, is one of the bursae involving the hip. It is the largest bursa around the hip joint. It is located beneath the musculotendinous portion of the iliopsoas muscle, anterior to the hip joint capsule and lateral to the common femoral vessels. It can communicate with the hip joint in about 15% of patients. It is usually collapsed but can be distension by overproduction of synovial fluid from a variety of causes.