Pincer impingement A - Piriformis Syndrome - Irritation of the sciatic nerve Piriformis muscle B - Lumboischialgia - Pain in the lumbar spine and Leg pain over the sciatic nerve C - trochanteric bursitis - Inflammation of the bursae of the hip joint D - Combined hip impingements - Cam impingement (Camshaft impingement) and Pincer impingement (Pincer impingement)
You can find an overview of all Dr-Gumpert images at: medical illustrations