Burns P E, Grace M G, Lees A W, May C
J Can Assoc Radiol. 1979 Jun;30(2):74-6.
Eighty patients with negative mammograms and proven breast cancer are described. The incidence of negative mammograms is 5 to 7% of all breast cancer in Northern Alberta. In 30 patients, immediate biopsy because of clinical abnormality, and mastectomy, revealed only 3.3% axillary node involvement. The remaining 50 patients gave a history of finding a lump and then had a negative mammogram. Biopsy was delayed for a mean of 45 weeks. Their incidence of axillary node involvement was 42%. The mean age of both groups of patients was seven to eight years younger than the mean for all breast cancer patients. The implications of such delay on prognosis and survival are obvious. More public and medical education is needed.
本文描述了80例乳房X线摄影呈阴性但确诊为乳腺癌的患者。在阿尔伯塔省北部，乳房X线摄影呈阴性的情况在所有乳腺癌病例中占比5%至7%。30例因临床异常而立即进行活检并接受乳房切除术的患者中，腋窝淋巴结受累率仅为3.3%。其余50例患者有发现肿块后乳房X线摄影呈阴性的病史。活检平均推迟了45周。他们的腋窝淋巴结受累率为42%。这两组患者的平均年龄比所有乳腺癌患者的平均年龄小7至8岁。这种延迟对预后和生存的影响显而易见。需要更多的公众和医学教育。
