Content for this workshop will become available on January 30, 2026. If you would like to register for all four 2026 January Workshops at the bundled rate, please visit this link.

ABSTRACT

​‘A Hotbed for Pathology: Selected Basal Plate Disorders’ will address the diagnostic complexity and clinical relevance of basal plate pathology in delivered placentas, focusing on basal plate myometrial fibers, maternal arteriopathies, and acute placental abruption. 

​The session will open with an overview of PAS, an increasingly common disorder linked to rising cesarean delivery rates and uterine scarring. Characterized by abnormal placental adherence and invasion due to defective decidualization, PAS carries a high risk of maternal morbidity. Accurate diagnosis and standardized reporting are essential, and recent consensus guidelines emphasize uniform terminology and multidisciplinary communication to improve outcomes. Participants will review key histopathologic features and discuss the role of basal plate myometrial fibers (BPMF) in identifying risk for PAS in subsequent pregnancies. 

​Attention will then turn to maternal vascular malperfusion (MVM), primarily decidual arteriopathy, which is strongly associated with preeclampsia, fetal growth restriction, and stillbirth. The workshop will conclude with a discussion of acute placental abruption, highlighting its pathophysiology, diagnostic limitations, and clinicopathologic correlation.  

​Using case-based digital microscopy and structured reporting examples, participants will apply consensus diagnostic criteria and reporting templates to improve diagnostic accuracy, consistency, and clinical relevance in placental pathology practice.