目的　进一步降低乳腺疾病、特别是乳癌的漏、误诊率。方法　总结了经病理证实的 2 4例漏、误诊乳腺疾病的X线表现。结果　 2 4例中 ,16例乳癌漏诊 :8例表现为腺病表现 ,2例呈致密型乳腺 ,3例无块影发现 ,2例病灶未完全摄入片内 ,1例见边缘光整的块影 ;8例良性病变误诊为乳癌 ;4例略呈分叶状块影 ,2例见泥沙样钙化 ,2例乳晕后片状影。结论　乳癌X线诊断如能结合临床、穿刺及其他检查 ,可提高诊断准确率。 Objective To further reduce the breast disease, especially breast cancer leakage, misdiagnosis rate. Methods The pathological findings of 24 cases of missed and misdiagnosed breast disease X-ray findings. Results Of the 24 cases, 16 cases were misdiagnosed as breast cancer: 8 cases showed adenosis, 2 cases were dense breasts, 3 cases showed no block, 2 cases did not completely in-slice and 1 case had marginal finishing 8 cases of benign lesions were misdiagnosed as breast cancer, 4 cases were slightly lobulated, 2 cases of sediment-like calcification, 2 cases of areola after film-like shadow. Conclusion X-ray diagnosis of breast cancer, if combined with clinical, puncture and other tests, can improve the diagnostic accuracy.