Primary leiomyosarcoma of bone is a rarely reported tumor of elderly subjec
ts. It usually shows an aggressive osteolytic pattern on plain radiographs
and involves predominantly the metaphyses of long bones. We report a case o
f primary leiomyosarcoma of bone, which is atypical by its epiphyseal locat
ion, a non-aggressive pattern on plain radiographs and its MR imaging featu
res.