Chondroblastoma with epiphyseal and metaphyseal extension
Chondroblastoma with epiphyseal and metaphyseal extension
Anteroposterior radiograph of the knee. Observe the large chondroblastoma affecting the tibial epiphysis, with extension into the metaphysis. Observe the sharp zone of transition and clearly defined margins of this lesion. Chondroblastoma and giant cell tumor are the two most common neoplasms to affect the epiphysis.