目的　探讨全数字化乳腺摄影对临床未触及乳癌的诊断价值。方法　收集 2 0 0 3 -0 4～ 0 7门诊及体检 412例中遇到的 3 4例乳癌 ,其中临床触及肿块的 2 2例 ,未触及肿块的 12例。全部病例采用全数字化乳腺摄影机检查 ,并经病理证实 ,检查体位常规采用CC位 (头尾位 )、MLO位 (内外斜位 ) ,必要时加照侧位及局部点片。对临床未触及包块的乳癌 ,均行术前定位。结果　 2 2例临床触及肿块的乳癌中 ,髓样癌 4例 ,硬癌 2例 ,浸润性导管癌 16例。 12例临床未触及包块的乳癌中 ,X线呈现微小钙化 6例 ,其中癌前病变 1例、导管原位癌 2例、导管浸润性癌 3例 ;呈现微小结节 2例 ,其中 1例导管原位癌、1例导管浸润癌 ;呈现微小结节半结节内微小钙化 2例 ,1例导管原位癌、1例导管浸润癌 ;呈现结构紊乱区 1例 ,为小叶原位癌 ,结构紊乱区伴微小钙化 1例 ,为浸润导管癌。结论　全数字化乳腺摄影能清晰显示乳腺癌的直接及间接征象 ,尤其对临床未触及包块的乳癌具有更重要的诊断价值 Objective To investigate the value of full digital mammography in the diagnosis of non-invasive breast cancer. Methods Thirty-four cases of breast cancer were collected from outpatients and 412 cases of physical examination from 2003 to 2004. There were 22 cases of clinically involved tumors and 12 cases of untreated tumors. All cases were examined by full digital mammography and confirmed by pathology. The body position was examined by CC (head-tail position) and MLO (internal and external oblique position). When necessary, lateral and partial spotting was added. On the clinical non-invasive mass of breast cancer, preoperative positioning. Results In 22 cases of clinically involved breast cancer, there were 4 cases of medullary carcinoma, 2 cases of hard carcinoma and 16 cases of invasive ductal carcinoma. In 12 cases of non-invasive breast cancer, X-ray showed micro-calcification in 6 cases, including 1 case of precancerous lesions, 2 cases of ductal carcinoma in situ and 3 cases of invasive ductal carcinoma. There were 2 cases of minimal nodules, of which 1 case Ductal carcinoma in situ, ductal carcinoma in one case, microscopic nodules in 2 cases, ductal carcinoma in situ in 1 case, ductal carcinoma in 1 case, and ductal carcinoma in 1 case, with lobular carcinoma in situ, Structural disorder with microcalcification in 1 case, invasive ductal carcinoma. Conclusion Digitalized mammography can clearly show the direct and indirect signs of breast cancer, especially for clinical non-invasive massaging of breast cancer has more important diagnostic value