While her family had initially brushed it off, the young girl's odd gait continued for four years ... It needs a copy of the abnormal gene from each parent, but it is difficult to know who will ...

Case summary: A 17-year-old boy presented with abnormal gait and hip pain. The anteroposterior (AP) pelvis X-ray revealed bilateral abnormalities in the femoral metaphysis, acetabulum, and ilium bones ...