Mediastinal teratoma in a free-ranging American black bear (Ursus americanus).
A 2.75-yr-old female American black bear (Ursus americanus) was found emaciated and unable to rise. It was euthanized due to the perceived poor prognosis. An approximately 18 x 8 x 10-cm, multiloculated, well-demarcated mass that extended from the bifurcation of the trachea, laterally displacing the lung lobes and caudally displacing the heart. The mass contained fibrous connective tissue, cartilage, bone, nervous tissue, smooth muscle, and a variety of epithelial structures. A mediastinal teratoma was diagnosed based on the microscopic features of the neoplasm.
Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA.
Brandon A
BA
Munk
North Carolina Wildlife Resources Commission, Division of Wildlife Management, 618 Center Hill Road, Tyner, NC 27980, USA.
J Chris
JC
Turner
Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA.
M Kevin
MK
Keel
D000818:Animals; D005260:Female; D008479:Mediastinal Neoplasms / Q000473:pathology / Q000662:veterinary*; D013724:Teratoma / Q000473:pathology / Q000662:veterinary*; D001503:Ursidae