Doctors almost always agree on a pathological diagnosis of invasive breast cancer, there is room for improvement when diagnosing atypia (or atypical ductal hyperplasia-ADH) and DCIS (ductal carcinoma in-situ). The Dartmouth investigators, and national collaborators, published the study, “Diagnostic Concordance Among Pathologists Interpreting Breast Biopsy Specimens,” in JAMA. The study involved 115 participating pathologists from 8 states, providing a total of 6,900 breast pathology interpretations. The overall concordance rate was 75.3%, with a rate of 96% for biopsies with invasive carcinoma. The concordance rate for atypia was just 48%, and it was 84% for DCIS. Here is the New York Times report.

Happy Memorial Day
Today, we express our heartfelt gratitude to those who served and remember those who are no longer with us.