A 45 yrs male presented with an expansile lesion in the centre of femoral metaphysis.The lesion shows Endosteal scalloping and punctuate calcifications.Most likely diagnosis is:

A 45 yrs male presented with an expansile lesion in the centre of femo

1.	A 45 yrs male presented with an expansile lesion in the centre of femoral metaphysis.The lesion shows Endosteal scalloping and punctuate calcifications.Most likely diagnosis is:
A.	Chondrosarcoma
B.	Osteosarcoma
C.	Fibrous Dysplasia
D.	Simple bone cyst
Answer» B. Osteosarcoma