MR imaging of aggressive childhood bone lesions

The authors report their use of MR imaging in 13 children to study bone lesions that had appeared aggressive on radiographs. Correlation with CT in nine patients and with pathologic specimens in all 13 patients showed MR imaging was accurate in estimating cortical and medullary involvement. MR imaging showed soft- tissue involvement better than CT, and it was helpful in identifying and characterizing the tumors. MR imaging provided information equal to or better than CT in eight cases and was complementary to CT in one case