Endobronchial polyp derived from a myxosarcoma in the lung of a dog.
An endobronchial polyp was visible radiographically and bronchoscopically in an 11-year-old, mixed-breed dog with a persistent cough. The polyp was removed by traction. Initial histological examination suggested it was a myxomatous fibroma. The cough resolved but recurred with polyp regrowth. Two additional lung masses became visible radiographically. The polyp was removed twice more at 6-month intervals. Euthanasia was performed 15 months after first presentation when coughing recurred soon after the final bronchoscopy. Histological examination revealed that the mass was a myxomatous sarcoma. The lung contained two other unrelated tumors: a bronchioloalveolar carcinoma and a carcinoma of unknown origin.
Hill
Richard C
RC
Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, 2015 SW 16th Avenue, Gainesville, Florida 32610, USA.
Ginn
Pamela E
PE
Thompson
Margret S
MS
Seguin
M Alexis
MA
Miller
Daphne
D
Taylor
David P
DP
D000818:Animals; D001999:Bronchoscopy / Q000379:methods / Q000662:veterinary; D004283:Dog Diseases / Q000175:diagnosis* / Q000601:surgery; D004285:Dogs; D017809:Fatal Outcome; D008175:Lung Neoplasms / Q000150:complications / Q000175:diagnosis / Q000601:surgery / Q000662:veterinary*; D008297:Male; D009236:Myxosarcoma / Q000150:complications / Q000175:diagnosis / Q000601:surgery / Q000662:veterinary*; D009364:Neoplasm Recurrence, Local / Q000662:veterinary; D011127:Polyps / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery / Q000662:veterinary*; D013510:Pulmonary Surgical Procedures / Q000379:methods / Q000662:veterinary; D011859:Radiography