Ollier disease in a 6-year-old child

A 6-year-old boy presented to the orthopaedic clinic, referred from his general practitioner after his mother noted an apparent shortening of the left leg, in toeing of the left foot and a waddling gait. No sinister symptoms were described. On examination there was a half-centimetre shortening in the femoral component of the left leg. An X-ray of the pelvis and left femur revealed multiple lucent lesions in the left hemipelvis and …