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目的 :调查 1996～ 1998年接受乳腺普查妇女的间期癌发病率 ,探讨乳腺癌普查间隔的合理时间。方法 :收集发生间期癌距离普查的时间、间期癌大小、腋淋巴结转移情况和病理诊断 ,并复习普查X线钼靶片。结果 :间期癌 2 5例 ,发病率为 0 .3‰ ,平均发病时间 (13.8± 5.9)个月。肿瘤最大径≤ 1.0cm者 1例 ,1.1～ 3.0cm 18例 ,3.1～ 5.0cm 4例 ,>5.0cm 1例 ,无肿块者 1例。临床分期 :Ⅰ期 2例 ,Ⅱ期 16例 ,Ⅲ期 7例。 7例腋淋巴结转移。病理类型均为浸润性癌。结论 :本文间期癌发病率低于国外资料报告 ,说明普查有效。 80 %的间期癌发生在 50岁以下的妇女。对 4 0岁以下妇女 ,若存在乳腺癌高危因素 ,普查间期宜改为每年 1次 ,可明显降低间期癌发病率。
OBJECTIVE: To investigate the incidence of intercurrent cancer among women undergoing breast screening from 1996 to 1998 and to explore the reasonable time for breast cancer screening. Methods: We collected the time of intercostal cancer distance screening, the size of intercostal cancer, the status of axillary lymph node metastasis and pathological diagnosis, and reviewed the X-ray mammography. Results: Twenty-five patients with intercostal cancer had an incidence of 0.3 ‰ and a mean onset time of (13.8 ± 5.9) months. 1 case with tumor diameter less than 1.0 cm, 18 cases with 1.1-3.0 cm, 4 cases with 3.1-5.0 cm, 1 case> 5.0 cm, and 1 case without mass. Clinical stage: stage Ⅰ in 2 cases, stage Ⅱ in 16 cases, stage Ⅲ in 7 cases. 7 cases of axillary lymph node metastasis. Pathological types are invasive cancer. Conclusion: The incidence of intercostal cancer in this paper is lower than that of foreign data, indicating census is effective. Eighty percent of the cancers occur in women under 50 years of age. For women under the age of 40, if there is a high risk of breast cancer, census should be changed to once a year, can significantly reduce the incidence of intercostal cancer.