Current concepts in the radiographic evaluation of osteoid osteoma
Contemporary imaging modalities are reviewed as to their utility in the detection and diagnosis of osteoid osteoma. The roentgenographic features of osteoid osteoma depend upon: the type of osteoid osteoma, and the location within a given bone. In the majority of cases, characteristic radiographic changes of osteoid osteoma are identified on plain films yet significant diagnostic delays are not uncommon. In particular, osteoid osteomas, which are atypical in location or in a complex anatomic location, present a special problem in detection and diagnosis for the radiologist. Special emphasis is directed at those instances of diagnostic dilemma for the radiologist and a specific and logical diagnostic approach is outlined. A rational sequence of imaging modalities is defined which should facilitate and expedite the detection and diagnosis of osteoid osteoma.