Computed tomography of intraosseous lipoma of os calcis.

Three new cases of intraosseous lipoma of the os calcis were investigated, and the literature on nine previously reported cases was reviewed. Computed tomography (CT) was employed to diagnose the lesions preoperatively. CT energy attenuation of the lesions and fatty tissues showed similar patterns. The preoperative diagnoses suggested by clinical, anatomic, and radiologic studies were later confirmed by excision biopsy.