Smart C R, Myers M H, Gloeckler L A
Cancer. 1978 Mar;41(3):787-9. doi: 10.1002/1097-0142(197803)41:3<787::aid-cncr2820410301>3.0.co;2-e.
From the SEER files of the NCI, 8,587 cases of breast cancer diagnosed in 1975 were analyzed. Of these cases, 5.3% were noninvasive. Of the invasive cancers under 0.5 cm in diameter, 17.2% had positive axillary lymph nodes. Where the physician recorded no palpable axillary lymph nodes, 34.5% were found to be positive.
对美国国立癌症研究所监测、流行病学和最终结果(SEER)数据库中1975年诊断出的8587例乳腺癌病例进行了分析。在这些病例中,5.3%为非浸润性。直径小于0.5厘米的浸润性癌中,17.2%有腋窝淋巴结转移。当医生记录无可触及的腋窝淋巴结时,34.5%被发现有转移。