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Congenital Tracheal Web Malformation in a Wild Brown Bear ( Ursus arctos ), Sweden, 2010
Erik O Ågren1, Arne Söderberg1
11 Department of Pathology and Wildlife Diseases, National Veterinary Institute, 751 89 Uppsala, Sweden;
Journal of Wildlife Diseases
|April 8, 2016
Abstract:
We describe a congenital tracheal web malformation in a wild female brown bear (Ursus arctos) yearling that was euthanized after being hit by a train in Norrbotten County, Sweden, December 2010. A 3-cm-long, abnormal, longitudinal mucosal fold divided the trachea into two halves, without obviously blocking the airflow.

