BIA-ALCL Epidemiology in an Aesthetic Breast Surgery Cohort of 1,501 Patients.

When using a denominator based on a cohort of cosmetic patients, BIA-ALCL occurrence is higher than previously reported, particularly with macrotextured devices. Given the similar IR between reconstructive and cosmetic cohorts, their even distribution can be consequent to underreporting due to poorer follow up and lower awareness in the latter group. The genetic predisposition in oncologic cohort reasonably affects the early onset more than the IR. Importance of accurate follow-up is confirmed. Stratification risks analysis can guide surgeons during patient's counseling in the decision for prophylactic explantation.