Young-Jo Kim, M.D., Ph.D.¹; Tallal Charles Mamisch, M.D.^2
1Children’s Hospital-Boston, Harvard Medical School, Boston, MA, USA
²University of Bern, Switzerland

On the right: Pelvic radiograph of a 19-year-old woman with right hip pain. Minimal radiograph evidence of osteoarthritis is present. Some asphericity of femoral head suggesting possible impingement