[Negative results of the scintigraphic examination in osteoid osteoma]

The AA. report an unusual case of intraarticular osteoid osteoma of the elbow. Therefore the lesion was strongly suspected; the diagnosis was made only one year after the onset of symptoms by the use of Tc99m MDP bone scan specifically on the blood-pool image. Two earlier bone scans were made with negative results. Considerations have been made by the AA. on the metabolic behaviour of the tumor as shown by scintigraphic scans.