骨转移癌是中老年人常见恶性肿瘤之一。以往影像检查主要靠Ｘ线平片来确诊，但是一些较小的骨转移癌或Ｘ线平片显示不清的病灶，尤其是还未找到原发灶的病例，以及表现不典型者则很难确诊，有时被漏诊或误诊。而ＣＴ应用以来，上述骨转移癌常能明确诊断，与Ｘ线平片比较，... Bone metastasis is one of the common malignant tumors in the elderly. In the past, imaging was mainly diagnosed by X-ray film, but some of the smaller bone metastases or X-rays showed unclear lesions, especially if the primary lesion has not yet been found, and it is difficult to show atypical manifestations. Diagnosed, sometimes missed or misdiagnosed. Since the CT application, the above bone metastases can often be diagnosed clearly, compared with X-ray film,...