对１４９例肿瘤患者进行全身核素骨显像，有骨转移１０２例，阳性率６８．４％。其中５７例同时做了Ｘ线检查，２１例为阴性，而核素骨显像全部阳性。本文提示：骨显像是一个灵敏方法，常在Ｘ线检查前提早显示病变，故对早期诊断、治疗选择、预后判断等很有意义。但本法特异性差，难以鉴别良恶性病变。 Whole body radionuclide bone imaging was performed in 149 patients with tumor, with 102 cases of bone metastasis, the positive rate was 68.4%. Fifty-seven of them underwent X-ray examination at the same time, 21 were negative, and all of the radionuclide bone imaging was positive. This article suggests: Bone imaging is a sensitive method, often in the X-ray examination showed lesions early, so the early diagnosis and treatment options, prognostic judgments and so meaningful. However, the specificity of this law is poor, it is difficult to identify benign and malignant lesions.