Painless subtrochanteric osteoid osteoma presenting with lengthened femur A case report

An 11-year-old boy suffered from limb length discrepancy. He had limitation of the last degrees of flexion and external rotation of the left hip with wasting of the muscles of the thigh. The left lower limb was found 2 cm longer than the normal right side. There was a painless osteoid osteoma in the subtrochanteric region of the left femur