Primary leiomyosarcoma with the invasion into the intertrabecular space ofbone: A case report and the review of the literatures

Primary leiomyosarcoma of bone is very rare. Most of reported cases were os teolytic. We report a primary leiomyosarcoma arising from the neck of the f emur of a 43-year-old woman who had no remarkable abnormalities on plain ra diographs. Magnetic resonance imaging (MRI) clearly depicted the lesion. Bi opsy revealed it leiomyosarcoma. Gynecological and gastrointestinal examina tions ruled out metastatic leiomyosarcoma. Wide excision of the tumor was p erformed and followed by endoprosthetic replacement of the proximal femur. Microscopic examination revealed tumor cells infiltrating into the intertra becular space. (C) 2001 Elsevier Science Lac. All rights reserved.