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Am J Surg. 2001 Oct;182(4):355-8.

Upgrade rate of core biopsy-determined atypical ductal hyperplasia by open excisional biopsy.

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The Breast Health Center, DuPage Medical Group, 1250 N. Mill St., Naperville, IL 60563, USA.



Core biopsy finding of atypical ductal hyperplasia (ADH) are generally followed by open biopsy to avoid underestimation of malignant disease.


Retrospective examination of 11 gauge stereotactic-guided vacuum-assisted core biopsies was made with respect to ADH diagnosis, follow-up open biopsy, and upgrade rate. Readily available clinical, mammographic, and pathologic features potentially contributory to an upgrade were studied.


This series of 1,313 patients had 43 ADH diagnoses. Thirty-two had open follow-up. There were 4 upgrades. Mammographic indication for biopsy, age, removal of calcifications, and the percentage of ADH in the specimen were not significant in predicting an upgrade with all probabilities over 0.10, odds ratios not different than 1, and 95% bounds all encompassing 1.


These data indicate a high upgrade rate (13%) for ADH-positive core biopsies with no definitive predictive criteria for an upgrade. Our data support follow-up excision of ADH lesions diagnosed by core biopsy.

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