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  • Title: Unusual vascular ring in a cat: left aortic arch with right ligamentum arteriosum.
    Author: McCandlish IA, Nash AS, Peggram A.
    Journal: Vet Rec; 1984 Apr 07; 114(14):338-40. PubMed ID: 6719787.
    Abstract:
    A young kitten was presented with regurgitation of food at weaning. Episodes of respiratory distress and cyanosis were also present. The cause of food regurgitation was a perioesophageal vascular ring caused by left descending aorta and a right ligamentum arteriosum. This type of vascular ring has not previously been described. There was also anomalous development of the right subclavian artery and a large ventricular septal defect. The respiratory distress and cyanosis was most probably caused by a combination of tracheal compression by the vascular ring and a polycythaemia associated with the ventricular septal defect. Surgical correction was not attempted.
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