scimitar syndrome (MONDO_0015987, a Monarch Disease Ontology id) is characterized by a combination of cardiopulmonary anomalies including partial anomalous pulmonary venous return connection of the right lung to the inferior caval vein leading to the creation of a left-to-right shunt. Also known as: Epibronchial right pulmonary vein syndrome, Halasz syndrome, congenital pulmonary venolobar syndrome, hypogenetic lung syndrome.