aortic arch defects Neuhauser anomaly MEDGEN:1633982 GARD:0019638 MONDO:0020416 UMLS:C4707820 SCTID:766751007 Orphanet:99078 Neuhauser anomaly is a rare cardiovascular morphological anomaly due to maldevelopment of embryonal aorta resulting in right aortic arch and left ligamentum arteriosum characterized by tracheoesophageal compression symptoms (stridor, dyspnea, dysphagia, apnoeic episodes, recurrent respiratory infections).