Metachronous myxofibrosarcoma and osteosarcoma: case report and review of the literature.

The occurrence of multiple primary sarcomas in one individual is very uncommon and the development of osteosarcoma as a second tumor following a soft tissue sarcoma is extremely rare. We report a case of a 62-year-old man who developed 2 histologically distinct sarcomas: a soft tissue myxofibrosarcoma and vertebral osteosarcoma. This unusual case highlights the critical role of careful histopathological evaluation in distinguishing synchronous or metachronous neoplasia from metastatic tumor.

Imaging features of foot osteoid osteoma.

Objectives: We performed a retrospective review of the imaging of nine patients with a diagnosis of foot osteoid osteoma (OO).

Materials And Methods: Radiographs, computed tomography (CT) and magnetic resonance imaging (MRI) had been performed in all patients. Radiographic features evaluated were the identification of a nidus and cortical thickening.