Diagnosis Osteoid Osteoma of the Spine Discussion The nidus may be radiolucent or may contain calcifications with variable surrounding sclerotic reaction.

osteoid osteoma, may be seen on X-ray.

Thickening of the femoral cortices, which may appear similar to an osteoid osteoma, may be seen on X-ray.

Failure of osteoid to calcify in the adult is called osteomalacia.