Anatomic pathology selected abstracts
June 2026—Atypical endometriosis is a potential precursor of endometriosis-associated ovarian carcinoma. Despite this, identification of atypical endometriosis (AE) lacks established clinical implications and is not routinely incorporated in histopathological examinations for endometriosis. The authors conducted a study to determine the interobserver variability in AE diagnosis and classify features that may contribute to consistent identification and diagnosis.