Which one of the following benign tumors can metastasize to the lung?: (A) Osteoid osteoma., (B) Non-ossifying fibroma., (C) Hemangioma., (D) Chondroblastoma
Answer is D. Ans. D. Chondroblastoma.Benign skeletal tumors rarely if ever metastasize to lung. The two exceptions to this rule are giant cell tumor (up to 10% metastasize to lung) and chondroblastoma