骨骼的继发性转移瘤相当常见。根据Abrams等氏病理学统计,1000例癌肿骨内发生转移的机会达27.2％。随着恶性肿瘤治疗的进步,病人生命的延长,发病率有渐增的趋势。就人体各系统转移瘤发生频度来看,骨转移仅次于肺脏和肝脏而居第三位。然而,有关骨转移瘤X线诊断学方面的研究报导,相对的却比较少。晚近国内除孙鼎元 Secondary metastases of bones are quite common. According to Abrams et al.’s pathology statistics, the chance of metastasis in bone in 1,000 cases of cancer is 27.2%. With the progress in the treatment of malignant tumors and the prolongation of patients’ lives, the incidence rate has gradually increased. In terms of the frequency of metastatic tumors in various systems of the human body, bone metastases ranks second only to the lungs and liver. However, studies on X-ray diagnosis of bone metastases have reported relatively few. Late at home except Sun Dingyuan