Surgery General 876554c4 Which metabolic condition has phosphaturia and osteomalacia? A Fibrosarcoma B Osteosarcoma C Undifferentiated sarcoma D Malignant peripheral nerve sheath tumor High-Yield Explanation Ans: A. FibrosarcomaPhosphatonin (FGF-23) oncogenic osteomalacia (paraneoplastic syndrome) seen in fibrosarcoma.