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Updated: Mar 17, 2026
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Easily recognizable sonographic patterns of ductal carcinoma in situ of the breast
Chia-Ling Chiang1, Huei-Lung Liang1, Chen-Pin Chou1
1Department of Radiology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, ROC; School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.
Background:
Ductal carcinoma in situ (DCIS) is a malignant proliferation of ductal epithelium confined by the basement membrane of the involved breast ducts. The aim of this study was to categorize positive findings of DCIS of the breast on sonography.
Methods:
From 2007 to 2011, 100 pathologically proven DCIS lesions were evaluated. Four sonographic patterns used to identify DCIS have been characterized as cumulus-type, coral-type, pipe-type, and miscellaneous lesions.
Results:
The lesion numbers of nonhigh-grade and high-grade DCIS were 44 and 56, respectively. The coral type (42%) was the most commonly found lesion, followed by cumulus-type (38%), pipe-type (17%), and miscellaneous (3%) lesions. There was no significant difference between the sonographic pattern and nuclear grades. However, the coral-type group was composed of significantly more high-grade DCIS cases than the other three types (p < 0.05).
Conclusion:
Coral-, cumulus-, and pipe-type lesions are three easily recognizable sonographic findings of DCIS. Improving the breast ultrasound technique to better demonstrate the sonographic pattern is necessary to facilitate breast lesion interpretation.
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