Babu a 19 yrs old male has a small circumscribed sclerotic swelling over diaphysis of femur; likely diagnosis is -
Well circumscribed sclerotic swelling over diaphysis of a long bone (femur) in a 19 years old suggests the diagnosis of osteoid osteoma.
Osteoclastoma
Osteosarcoma
Ewing sarcoma
Osteoid osteoma