<prompt> Expansile lytic lesion with fluid-fluid levels within the metaphysis of fibula seen on CT and MRI in an early adolescent female is typical ofGiant cell tumorAneurysmal bone cystHemangiomaFibrous dysplasia  <response>: Amongst given options, fluid-fluid levels are seen in GCT and ABC.Lesion in question is metaphyseal:- ABC Metaphyseal GCT EpiphysealAge of the patient is early adolescent:- ABC Before the age of 20 years GCT 20 - 40 yearsSo, the answer to the question is ABC. 