<prompt> A lady Dimple has a lytic lesion in X-Ray of upper end of humerus. The diagnosis is,OsteosarcomaOsteochondromaUnicarmel bone cystOsteoclastoma  <response>: C i.e. Unicameral bone cyst SimpleSolitaryUnicameral Bone cyst nearly always occurs during first two decades of life, mostly in metaphysis of proximal humerus 50 or femur with a male predominance Male-female ratio 2:1. 