Ramu, an 8-year old boy presented with pain in the arm. On x-ray, his upper end of humerus demonstrates an expansile lesion in the metaphysis with breach of the overlying cortex. Most likely diagnosis is -
Here the diagnosis is aneurysmal bone cyst because the overlying cortex is breeched, which is not seen in unicameral bone cyst.
Aneurysmal bone cyst
Unicameral bone cyst
Chondroblastoma
Osteoclastoma