Severe cardiomegaly with an atrial septal defect was discovered during necropsy of a subadult White-tailed Eagle (Haliaeetus albicilla) found dead in the wild. A thin membrane composed of fibromuscular tissue separated the left atrium into two chambers, most consistent with that described for cor triatriatum sinister (CTS) in other species. Seventeen months later, necropsy of an adult White-tailed Eagle again revealed CTS. This lesion has not been reported previously in raptors.
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25 March 2021
Cardiac Anomalies in Two White-Tailed Eagles (Haliaeetus albicilla) in Sweden
Alexandra Leijon,
Karin Maria Olofsson,
Jonas Malmsten
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Journal of Wildlife Diseases
Vol. 57 • No. 2
April 2021
Vol. 57 • No. 2
April 2021
Atrial septal defect
cor triatriatum
heart
pathology
raptor
wildlife