Persistent left cranial vena cava causing oesophageal obstruction and consequent megaoesophagus in a dog
2006
Larcher, Thibaut, T. | Abadie, Jérôme | Roux, Françoise A. | Deschamps, Jack-Yves | Wyers, Monique | Développement et Pathologie du Tissu Musculaire (DPTM) ; Institut National de la Recherche Agronomique (INRA)-École nationale vétérinaire, agroalimentaire et de l'alimentation Nantes-Atlantique (ONIRIS) | École nationale vétérinaire, agroalimentaire et de l'alimentation Nantes-Atlantique (ONIRIS) | Immuno-Endocrinologie Cellulaire et Moléculaire (IECM) ; Institut National de la Recherche Agronomique (INRA)
International audience
Mostrar más [+] Menos [-]Inglés. A 2-month-old Brittany spaniel dog was presented for persistent regurgitation, first observed soon after weaning. Clinical examination and diagnostic imaging suggested megaoesophagus associated with a vascular ring anomaly. The normal location of the trachea on the X-ray was not consistent with a persistent right aortic arch. Postmortem examination revealed a persistent left cranial vena cava that formed a non-elastic fibrous band enclosing the oesophagus and trachea, and causing constriction of the oesophagus. This uncommon congenital vascular defect has never previously been associated with megaoesophagus in the dog.
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