%0 Case Reports %T Subclinical maternal autoimmune disease leading to congenital high degree atrioventricular block: Case report and review of the literature. %A Walcott SE %A Tan CH %A Wicker J %A Litovsky S %J Cardiovasc Pathol %V 72 %N 0 %D 2024 Sep-Oct 18 %M 38508435 %F 3.975 %R 10.1016/j.carpath.2024.107634 %X Maternal autoimmune disease is the most common cause of congenital heart block (CHB), a rare illness characterized by fibrosis and calcification of the fetal atrioventricular (AV) node due to maternal autoantibodies anti-SSA/Ro and anti-SSB/La. We report the full autopsy and clinical information on a female neonate with high degree AV block and calcification in the AV node, atrial approaches to the AV node, and both right and left bundle branches, born to a 27-year-old female with subclinical autoimmune disease.