TY - JOUR
T1 - Atypical apocrine adenosis of the breast
T2 - Long-term follow-up in 37 patients
AU - Fuehrer, Neil
AU - Hartmann, Lynn
AU - Degnim, Amy
AU - Allers, Teresa
AU - Vierkant, Robert
AU - Frost, Marlene
AU - Visscher, Daniel
PY - 2012/2
Y1 - 2012/2
N2 - Context.-Atypical apocrine adenosis is a rare breast lesion in which the cellular population demonstrates cytologic alterations that may be confused with malignancy. The clinical significance and management of atypical apocrine adenosis are unclear because of the lack of longterm follow-up studies. Objective.-To determine the breast cancer risk in a retrospective series of patients with atypical apocrine adenosis diagnosed in otherwise benign, breast excisional biopsies. Design.-We identified 37 atypical apocrine adenosis cases in the Mayo Benign Breast Disease Cohort (9340 women) between 1967 and 1991 with a blinded pathology rereview. Breast cancer diagnoses subsequent to initial atypical apocrine adenosis biopsy were identified (average follow-up, 14 years). Results.-The mean age at diagnosis of atypical apocrine adenosis in the group was 59 years. Breast carcinoma subsequently developed in 3 women (8%) with atypical apocrine adenosis, diagnosed after follow-up intervals of 4, 12, and 18 years. The tumor from 1 of the 3 cases (33%) was ductal carcinoma in situ, contralateral to the original biopsy, and the other 2 cases (66%) were invasive carcinoma. Ages at the time of diagnosis of atypical apocrine adenosis were 55, 47, and 63 years for those that developed in situ or invasive carcinoma. Conclusions.-(1) Atypical apocrine adenosis was a rare lesion during the accrual era of our cohort (<1% of cases); (2) women found to have atypical apocrine adenosiswere, on average, older than were other patients with benign breast disease, however, there does not seem to be an association with age and risk for developing carcinoma in patients diagnosed with atypical apocrine adenosis, as previously suggested; and (3) atypical apocrine adenosis does not appear to be an aggressive lesion and should not be regarded as a direct histologic precursor to breast carcinoma.
AB - Context.-Atypical apocrine adenosis is a rare breast lesion in which the cellular population demonstrates cytologic alterations that may be confused with malignancy. The clinical significance and management of atypical apocrine adenosis are unclear because of the lack of longterm follow-up studies. Objective.-To determine the breast cancer risk in a retrospective series of patients with atypical apocrine adenosis diagnosed in otherwise benign, breast excisional biopsies. Design.-We identified 37 atypical apocrine adenosis cases in the Mayo Benign Breast Disease Cohort (9340 women) between 1967 and 1991 with a blinded pathology rereview. Breast cancer diagnoses subsequent to initial atypical apocrine adenosis biopsy were identified (average follow-up, 14 years). Results.-The mean age at diagnosis of atypical apocrine adenosis in the group was 59 years. Breast carcinoma subsequently developed in 3 women (8%) with atypical apocrine adenosis, diagnosed after follow-up intervals of 4, 12, and 18 years. The tumor from 1 of the 3 cases (33%) was ductal carcinoma in situ, contralateral to the original biopsy, and the other 2 cases (66%) were invasive carcinoma. Ages at the time of diagnosis of atypical apocrine adenosis were 55, 47, and 63 years for those that developed in situ or invasive carcinoma. Conclusions.-(1) Atypical apocrine adenosis was a rare lesion during the accrual era of our cohort (<1% of cases); (2) women found to have atypical apocrine adenosiswere, on average, older than were other patients with benign breast disease, however, there does not seem to be an association with age and risk for developing carcinoma in patients diagnosed with atypical apocrine adenosis, as previously suggested; and (3) atypical apocrine adenosis does not appear to be an aggressive lesion and should not be regarded as a direct histologic precursor to breast carcinoma.
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U2 - 10.5858/arpa.2011-0225-OA
DO - 10.5858/arpa.2011-0225-OA
M3 - Article
C2 - 22288965
AN - SCOPUS:84856613532
SN - 0003-9985
VL - 136
SP - 179
EP - 182
JO - Archives of Pathology and Laboratory Medicine
JF - Archives of Pathology and Laboratory Medicine
IS - 2
ER -