An 8-year-old boy presents with a gradually progressing swelling and pain since 6 months over the upper tibia. On x-ray, there is a lytic lesion with sclerotic margins in the upper tibial metaphysis. The diagnosis is -

Lytic lesion with sclerotic margin in upper end of tibia in an 8-year-old by suggests the diagnosis of Brodie's abscess (among the given options). Lytic lesions with sclerotic margins is seen in : - i) Simple bone cyst                         ii) Brodie's abscess   iii) Osteoblastoma          iv) Chondroblastoma