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探讨乳腺癌改良根治术后全身骨扫描的价值。方法：自1997－01－1998-08对77例乳腺癌改良根治术后放疗前的病人常规行全身骨扫描。结果：77例病人放疗前骨扫描显示阳性率为11．7％（9／77），其中4例（5．2％）经同期CT或X片证实为骨转移，在中位随诊时间内总阳性率为15．6％（12／77），骨转移发生率为9．1％（7／77），总假阳性率为6．5％（5／77）。结论：乳腺癌病人术前或放疗前应常规作全身骨核素扫描。
To investigate the value of whole body bone scan after modified radical mastectomy for breast cancer. Methods: From January 1997 to August 1998, 77 patients who had undergone radiotherapy before modified radical mastectomy were routinely scanned with whole body bone. RESULTS: The positive rate of bone scan before radiotherapy in 77 patients was 11.7% (9/77), 4 of which (5.2%) were confirmed as bone metastases by CT or X-ray at the same time, during the median follow-up period. The overall positive rate was 15.6% (12/77), the incidence of bone metastasis was 9.1% (7/77), and the total false-positive rate was 6.5% (5/77). CONCLUSIONS: Patients with breast cancer should routinely undergo whole body radionuclide scans before surgery or before radiotherapy.