12 years male came with swelling of lower end tibia which is surounded by rim of reactive bone. what is most likely diagnosis?

Brodie&;s abscess : seen in immunocompetent host 1. It is along standing localized pyogenic abscess in the bone . 2. It usually involves long bones e.g. upper end of tibia 3. classical brodie&;s abscess looks like a small walled off cavity in bone with little or no periosteal reaction. usual isolated oganism is Staphlococcus aureus ref : maheswari 9th ed