Peer-reviewed veterinary case report
Dog with Horner's syndrome and thyroid cancer causing neck mass
By Melián, C et al.·Published in The Journal of small animal practice·1996·Department of Medicine, Spain·View original on PubMed →
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Original publication title: Horner's syndrome associated with a functional thyroid carcinoma in a dog.
- Species:
- dog
Plain-English summary
A 7-year-old male Irish Setter was brought to the vet because of a neck mass, drooping eyelids, and a third eyelid that was sticking out. He had also been drinking and urinating more than usual for about two weeks. The vet found a large mass in his neck that was pressing on his trachea and esophagus, and tests showed he had hyperthyroidism. Unfortunately, after further examination, it was discovered that he had a large thyroid tumor that had spread to his lungs, and he did not survive.
People also search for: dog neck mass · Irish Setter drooping eyelid · dog hyperthyroidism symptoms · thyroid cancer in dogs · dog third eyelid prolapse
Abstract
A seven-year-old entire male Irish setter was presented because of a neck mass, prolapse of the third eyelid and apparent drooping of the upper eyelid. Historical findings included increased appetite as well as polyuria and polydipsia for about two weeks. The most remarkable findings on physical examination were right-sided Horner's syndrome, pre-scapular lymphadenopathy and a large, ventral cervical mass. Lateral cervical radiographs showed a large, soft tissue opacity surrounding the trachea and retropharyngeal area which was causing displacement and narrowing of the cervical trachea and oesophagus. Results of thyroid testing suggested hyperthyroidism. At necropsy, a large, invasive tumour was identified in the ventral cervical region and multiple metastases of various sizes were detected in the lungs. Histopathological examination of the tumour revealed follicular thyroid carcinoma and confirmed widespread pulmonary metastasis.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/8981280/