MR appearance of cystic fibrous dysplasia

The radiologic and MR appearances of cystic fibrous dysplasia (FD) along with pathologic correlation are reported in a symptomatic patient. As a guide for operative intervention, MRI is helpful in both characterizing the lesion and its internal structure and determining the extent of osseous involvement. Cystic FD without an aneurysmal bone cyst component has not been previously reported in the radiologic literature.