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Blunt Duct Adenosis (Columnar Cell Change)

 
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Breast_Benign_ColumnarCellChange6.jpg

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Blunt duct adenosis, also known as Columnar Cell Change, has been assigned a variety of other names. The lesion is centered around terminal duct-lobular unit and maintains its lobular outline (as seen here). The acini are variably dilated and lined by columnar epithelium.

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