A left nonrecurrent inferior laryngeal nerve in a patient with right-sided aorta, truncus arteriosus communis, and an aberrant left innominate artery.
The identification and prevention of injury to the inferior laryngeal nerve is one of the main issues in thyroid surgery. Sound knowledge of anatomic variants of the nerve is of major importance. In rare cases the nerve does not run the recurrent way and it is therefore difficult to identify the nerve. Abnormal developments of the aortic arch during embryogenesis include malformation of the great vessels and can be the reason for anatomic abnormalities. A cause for a nonrecurrent nerve on the right side is the so-called lusorian artery, a right retroesophageal subclavian artery. Left-sided nonrecurrent nerves are seldom if ever documented. Only two cases have been published so far of patients with situs inversus viscerum, where left nonrecurrent nerves were associated with inverse, left-sided lusorian arteries.
Fellmer
Peter T
PT
Department of Visceral-, Transplant-, Thorax- and Vascular Surgery, University of Leipzig, Leipzig, Germany. peter.fellmer@uniklinik-leipzig.de
Böhner
Hinrich
H
Wolf
Achim
A
Röher
Hans-Dietrich
HD
Goretzki
Peter E
PE
D000792:Angiography; D001011:Aorta / Q000002:abnormalities*; D001013:Aorta, Thoracic / Q000002:abnormalities / Q000000981:diagnostic imaging; D001027:Aortography; D016122:Brachiocephalic Trunk / Q000002:abnormalities* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007823:Laryngeal Nerves / Q000002:abnormalities*; D014338:Truncus Arteriosus / Q000002:abnormalities* / Q000000981:diagnostic imaging