intraossäres Leiomyosarkom

Primary

tumors of the patella. Patellar leiomyosarcoma. (A) Plain radiograph shows a mixed lytic and sclerotic lesion of patella. The margin of the lesion is ill defined and associated with cortical breach. (B) CT scan reveals multiple lytic lesions of the patella with a sclerotic rim and cortical disruption.