Carotid body tumors in the dog. Eleven cases (1978-1988)



Title Carotid body tumors in the dog. Eleven cases (1978-1988)
Author(s) J. E. Obradovich, S. J. Withrow, B. E. Powers, R. Walshaw
Journal Journal of Veterinary Internal Medicine / American College of Veterinary Internal Medicine
Date 1992
Volume 6
Issue 2
Start page 96
End page 101
Abstract Case records of 11 dogs with histologically confirmed carotid body tumors were reviewed. Surgical excision had been attempted in ten dogs with carotid body tumors, and one dog had been euthanatized at diagnosis. There were no intraoperative deaths but perioperative mortality was 40%. Horner's syndrome and laryngeal paralysis were the most common postoperative morbidities. The median survival time after surgery alone in the four dogs that survived the perioperative period was 25.5 months (range, 12-45 months). Two dogs treated with postoperative radiation therapy had survival times of 6 and 27 months. Of the six dogs surviving the perioperative period, two dogs are still alive at 19 and 32 months postoperatively. Of the four dogs that died, one was euthanatized 12 months postoperatively for nontumor-related causes. The remaining three dogs died of distant metastases. The carotid body tumors studied were characterized by local tissue invasion, neurovascular complications after therapy, and a propensity to metastasize to multiple sites in the body.

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