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J Korean Soc Radiol. 2011 Apr;64(4):383-388. Korean. Original Article. https://doi.org/10.3348/jksr.2011.64.4.383
An YY , Kim SH , Kang BJ , Lee AW , Song BJ .
Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea, Korea. rad-ksh@catholic.ac.kr
Department of Pathology, Seoul St. Mary's Hospital, The Catholic University of Korea, Korea.
Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea, Korea.
Abstract

PURPOSE: To evaluate whether the sonoelastographic features of atypical ductal hyperplasia (ADH) can be used to predict an upgrade to malignancy. MATERIALS AND METHODS: Conventional US and sonoelastographic images were available in 17 women with 18 ADH lesions diagnosed by sonographically guided core needle biopsy. Conventional US findings were analyzed according to the Breast Imaging Reporting and Data System classification. Elastographic images were classified into 5 elasticity scores according to the ITOH classification. In addition, the strain ratio between the mass and surrounding fat tissue as well as the mammographic features were reviewed. All lesions underwent subsequent surgical excision and a correlation was found for sonoelastographic and conventional US findings with pathologic results. RESULTS: Of the 18 ADH lesions that underwent surgical excision, four were found to be malignant (underestimation rate of 22.2%). Moreover, there was no significant difference in elasticity score (p=0.054) and strain ratio (p=0.375) between atypical ductal hyperplasia and lesions upgraded to malignancy on elastography. A mass with microcalcifications on mammography had a significantly higher association with malignancy and microcalcifications, as opposed to the absence of a mass, which was in all cases, benign (p=0.036). CONCLUSION: Sonoelastography may not be a helpful indicator for the differentiation of atypical ductal hyperplasia from malignant lesions. However, a correlation with mammographic features provides insight for predicting malignancy.

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