<prompt> Fluid levels are seen in?ABCTelangiectatic osteosarcomaMalignant fibrous osteosarcomaAll of the above  <response>: Ans DFluid levels can be seen in following conditions Benign: Aneurysmal bone cyst Chondroblastoma Giant cell tumor Simple bone cyst Fibrous dysplasia Malignant: Telangiectatic osteosarcoma Malignant fibrous histiocytoma Any necrotic bone tumor 