R esults: 45 case s were misdiagnosed as mammary carcinoma, 22 cases as intraductal papilloma, 28 cases as fibroma and 8 cases as inflammatory mass.

• 结果:术前诊断为乳腺癌45例、导管内乳头状瘤22例、纤维腺瘤28例、炎性包块8例、浆细胞性乳腺炎18例,误诊率85。