Abstract
IntroductionNational Comprehensive Cancer Network (NCCN) guidelines currently recommend excisional biopsy for atypical ductal hyperplasia (ADH) diagnosed on core needle biopsy (CNB) due to the possibility of pathologic upgrade to breast cancer upon excisional biopsy. We aimed to quantify the current rate of upgrade and identify risk factors. MethodsA retrospective review of women in the Legacy Health Care System with a diagnosis of ADH was performed for 2014 through 2015. Initial pathology and patient factors were reviewed for potential predictors of upgrade. Results91 women with ADH were identified. 84 (92%) underwent excisional biopsy; 16 (19%) were upgraded to breast cancer. Those upgraded were significantly older than non-upgraded patients (64.6 versus 56.7 years, p < 0.01), and 15 (94%) had greater than one duct involved by ADH. ConclusionThe principal clinicopathologic factor associated with upgrade is increasing patient age, however this is not sufficiently predictive. Excisional biopsy in patients diagnosed with ADH on CNB should continue. Further study may provide an avenue for selective excisional biopsy in patients with ADH.
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