In this issue of Surgical Pathology Clinics, guest editor Dr. Carlos Parra-Herran brings his considerable expertise to the topic of Gynecologic and Obstetric Pathology. Top experts cover emerging topics in gynecologic pathology that are relevant to clinical practice, including information on classification, terminology, diagnostic criteria, and ancillary testing. This issues also includes a review of the pathologic findings in specimens from patients undergoing gender-affirming surgery. Contains 14 practice-oriented topics including placental pathology: integrating consensus recommendations into practice; gestational trophoblastic neoplasia: contemporary diagnostic approach; homologous recombination deficiency and BRCA testing in pelvic high-grade serous carcinoma; ovarian sex cord stromal tumors and their mimickers; and more. Provides in-depth clinical reviews on gynecologic and obstetric pathology, offering actionable insights for clinical practice. Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.