title: Diagnostic evaluation of ductal carcinoma in situ of the breast: ultrasonographic, mammographic and histopathologic correlations.
abstract: The aims of the study described here were to illustrate the spectrum of ultrasonographic features of ductal carcinoma in situ (DCIS) and to evaluate the ability of ultrasonography (US) to predict the grade and recurrence of DCIS on the basis of mammographic and histopathologic findings. We retrospectively evaluated the ultrasonographic features of 129 DCIS lesions from 127 consecutive women and compared these with their mammographic and histopathologic features. The mean size of DCISs on ultrasonography and mammography (MMG) was 3.67 ± 1.40 and 4.00 ± 1.74 cm, respectively, which do not differ statistically (p = 0.09). Despite the statistical difference in Breast Imaging Reporting and Data System (BI-RADS) classification on US and MMG (p = 0.000), the median BI-RADS classification is category 4c on both US and MMG (p = 0.01). There was no statistically significant difference in the distribution of microcalcification on MMG and US. Clusters <5 mm in greatest diameter are easily seen on MMG. At US, a scattered/linear distribution on MMG had a higher level of visibility than clustered distribution on MMG. The correlation between tumor size and DCIS with micro-invasion evaluated using US is higher than that obtained using MMG (p = 0.001 and 0.024, respectively). When US was used for the detection of DCIS, diagnostic accuracy was significantly associated with higher Van Nuys groups, the presence of micro-invasion and comedo carcinoma (p = 0.000, 0.022 and 0.011, respectively). However, mammographic diagnostic accuracy was found not to associate with higher Van Nuys groups, the presence of micro-invasion and comedo carcinoma (p = 0.054, 0.093 and 0.256, respectively). Ultrasonography may play an important role both in detecting DCIS and in evaluating its histopathologic features. Detection of DCIS using MMG alone may be suboptimal for patients with dense breasts, especially among Chinese women.
authors.affiliation: Department of Ultrasound, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong, China. Electronic address: zhq_jin77@hotmail.com.
authors.forename: Zhan-Qiang
authors.initials: ZQ
authors.lastname: Jin
authors.affiliation: Department of Ultrasound, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong, China.
authors.forename: Mei-Ying
authors.initials: MY
authors.lastname: Lin
authors.affiliation: Department of Radiology, Ningxia People's Hospital, Yinchuan, Ningxia, China.
authors.forename: Wan-Qing
authors.initials: WQ
authors.lastname: Hao
authors.affiliation: Department of Radiology, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong, China.
authors.forename: Hua-Tang
authors.initials: HT
authors.lastname: Jiang
authors.affiliation: Department of Ultrasound, Ningxia People's Hospital, Yinchuan, Ningxia, China.
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Department of Pathology, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong, China.
authors.forename: Wen-Hua
authors.initials: WH
authors.lastname: Hu
authors.affiliation: Department of Pathology, Ningxia People's Hospital, Yinchuan, Ningxia, China.
authors.forename: Miao
authors.initials: M
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000175:diagnosis*; D018270:Carcinoma, Ductal, Breast / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008875:Middle Aged; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013223:Statistics as Topic; D016217:Ultrasonography, Mammary / Q000379:methods*; D055815:Young Adult
keywords: Breast; Ductal carcinoma in situ; Histopathology; Mammography; Ultrasonography