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Ultrasonographic alterations associated with the dilatation of mammary ducts: feature analysis and BI-RADS assessment.

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Title: Ultrasonographic alterations associated with the dilatation of mammary ducts: feature analysis and BI-RADS assessment.
Authors: Hsu HH (AUTHOR), Yu JC (AUTHOR), Hsu GC (AUTHOR), Chang WC (AUTHOR), Yu CP (AUTHOR), Tung HJ (AUTHOR), Tzao C (AUTHOR), Huang GS (AUTHOR), Hsu, Hsian-He1 (AUTHOR), Yu, Jyh-Cherng (AUTHOR), Hsu, Giu-Cheng (AUTHOR), Chang, Wei-Chou (AUTHOR), Yu, Cheng-Ping (AUTHOR), Tung, Ho-Jui (AUTHOR), Tzao, Ching (AUTHOR), Huang, Guo-Shu (AUTHOR)
Source: European Radiology. Feb2010, Vol. 20 Issue 2, p293-302. 10p.
Abstract: Objective: The purpose of this study was to analyse the lesion characteristics and the patterns of dilated ducts on ultrasonography (US) to determine the appropriateness of the Breast Imaging Reporting and Data System (BI-RADS) categories.Materials and Methods: From July 2001 to June 2006, 172 consecutive pathologically proved lesions with dilated ducts on US were reviewed retrospectively. All the lesions were classified into four types according to their US features, and in combination with the size, location, margins and number of lesions, the corresponding positive predictive values (PPVs) were obtained.Results: Of the 172 lesions, 55 (32%) were classified as type I, 68 (40%) as type II, 14 (8%) as type III and 35 (20%) as type IV. The PPVs for malignancy were 9% for type I, 13% for type II, 43% for type III and 17% for type IV. There was a significantly higher frequency of malignancy among type III lesions than among type I (43% vs 9%, respectively, P = 0.002; chi (2) test) or type II lesions (43% vs 13%, respectively, P = 0.009; chi (2) test). Lesions with a nonsubareolar location and noncircumscribed margins had a high probability of malignancy (P < 0.001 and P = 0.03, respectively).Conclusion: The four types of US classifications used in our study establish reliable references for the dilated duct patterns when stratified according to BI-RADS categories, and they clarify the indications for biopsy of these lesions. [ABSTRACT FROM AUTHOR]
Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Ultrasonographic alterations associated with the dilatation of mammary ducts: feature analysis and BI-RADS assessment.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Hsu+HH%22&quot;&gt;Hsu HH&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Yu+JC%22&quot;&gt;Yu JC&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Hsu+GC%22&quot;&gt;Hsu GC&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Chang+WC%22&quot;&gt;Chang WC&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Yu+CP%22&quot;&gt;Yu CP&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Tung+HJ%22&quot;&gt;Tung HJ&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Tzao+C%22&quot;&gt;Tzao C&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Huang+GS%22&quot;&gt;Huang GS&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Hsu%2C+Hsian-He%22&quot;&gt;Hsu, Hsian-He&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Yu%2C+Jyh-Cherng%22&quot;&gt;Yu, Jyh-Cherng&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Hsu%2C+Giu-Cheng%22&quot;&gt;Hsu, Giu-Cheng&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Chang%2C+Wei-Chou%22&quot;&gt;Chang, Wei-Chou&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Yu%2C+Cheng-Ping%22&quot;&gt;Yu, Cheng-Ping&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Tung%2C+Ho-Jui%22&quot;&gt;Tung, Ho-Jui&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Tzao%2C+Ching%22&quot;&gt;Tzao, Ching&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Huang%2C+Guo-Shu%22&quot;&gt;Huang, Guo-Shu&lt;/searchLink&gt; (AUTHOR)
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22European+Radiology%22&quot;&gt;European Radiology&lt;/searchLink&gt;. Feb2010, Vol. 20 Issue 2, p293-302. 10p.
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  Data: &lt;bold&gt;Objective: &lt;/bold&gt;The purpose of this study was to analyse the lesion characteristics and the patterns of dilated ducts on ultrasonography (US) to determine the appropriateness of the Breast Imaging Reporting and Data System (BI-RADS) categories.&lt;bold&gt;Materials and Methods: &lt;/bold&gt;From July 2001 to June 2006, 172 consecutive pathologically proved lesions with dilated ducts on US were reviewed retrospectively. All the lesions were classified into four types according to their US features, and in combination with the size, location, margins and number of lesions, the corresponding positive predictive values (PPVs) were obtained.&lt;bold&gt;Results: &lt;/bold&gt;Of the 172 lesions, 55 (32%) were classified as type I, 68 (40%) as type II, 14 (8%) as type III and 35 (20%) as type IV. The PPVs for malignancy were 9% for type I, 13% for type II, 43% for type III and 17% for type IV. There was a significantly higher frequency of malignancy among type III lesions than among type I (43% vs 9%, respectively, P = 0.002; chi (2) test) or type II lesions (43% vs 13%, respectively, P = 0.009; chi (2) test). Lesions with a nonsubareolar location and noncircumscribed margins had a high probability of malignancy (P &lt; 0.001 and P = 0.03, respectively).&lt;bold&gt;Conclusion: &lt;/bold&gt;The four types of US classifications used in our study establish reliable references for the dilated duct patterns when stratified according to BI-RADS categories, and they clarify the indications for biopsy of these lesions. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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