Toddler born breech who is beginning to walk who was noted to have a left limp

Radiograph of developmental dysplasia of the hip
Frogleg radiograph of the pelvis shows markedly asymmetrical ossification of the femoral epiphyses, with the left femoral epiphysis smaller in size than the right femoral epiphysis. The left acetabulum is also more shallow than the right acetabulum and the left femoral epiphysis appears slightly subluxed laterally and superiorly.

The diagnosis was developmental dysplasia of the left hip.