Man
19 yo,  pain and swelling at distal right femur one month ago (see photo). 
Ultrasound
examination this thigh with linear and convex probe showed the mass was fro
periosteum extending to muscle and destruction the bone  like sunray image.
Front
and lateral X-ray films this mass were not clear, but MSCT revealed the mass
being from periosteum and erosion the cortex of the femur bone with periosteal
reaction both 2 sides.
Biopsy
was done,   microscopic report was DISTAL FEMUR  TUMOR. Report of  biopsy of this tumor is OSTEOSARCOMA.
THE TREATMENT CHOICE IS  AMPUTATION THE LEG OR  REGIONAL CHEMOTHERAPY.
 
 














