Orthopaedics

A 9 year old boy presenting with lytic lesion on midshaft tibia. On HPE, there are grooved nuclei, giant cells eosinophilic cytoplasm and fibroblastic proliferation. Xray is as shown below. What is the likely diagnosis?

Langerhans cell histiocytosis

Giant cell tumor

Chondroblastoma

Osteoid osteoma

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