Right Atrial Isomerism, also known as ivemark syndrome, is related to congenital heart defects, multiple types, 6 and heart septal defect. An important gene associated with Right Atrial Isomerism is GDF1 (Growth Differentiation Factor 1), and among its related pathways/superpathways are Nervous system development and Beta-2 adrenergic-dependent CFTR expression. Affiliated tissues include spleen and heart, and related phenotypes are asplenia and common atrium