Peer-reviewed veterinary case report
CT scan features of basihyoid ectopic thyroid cancer in dogs
By Rossi, F et al.·Published in Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·2013·Clinica Veterinaria dell'Orologio·View original on PubMed →
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Original publication title: Computed tomographic features of basihyoid ectopic thyroid carcinoma in dogs.
- Species:
- dog
Plain-English summary
A group of eight dogs with a firm, non-painful swelling in the throat area was diagnosed with ectopic thyroid carcinoma, a type of cancer affecting the thyroid tissue in an unusual location. They underwent a CT scan to assess the size and characteristics of the tumors, which were found to be oval or bilobed masses affecting the bone and surrounding tissues. Some dogs had cancer spread to nearby lymph nodes or lungs. Treatment options can be guided by the CT findings, and it's important for pet owners to consider this type of cancer if they notice similar symptoms in their dogs.
People also search for: dog throat swelling · ectopic thyroid cancer in dogs · dog cancer treatment options · dog laryngeal mass symptoms
Abstract
Eight dogs with a firm, nonpainful swelling in the ventral laryngeal region and with a final diagnosis of ectopic thyroid carcinoma were investigated by Computed Tomography (CT) at six different institutions. Computed Tomography findings were reviewed, focusing on lesion volume, shape, margins, relationship with surrounding structures and adjacent vessels, attenuation characteristics, and presence of metastases. Ectopic thyroid carcinomas were seen as oval-to-bilobed masses centered on the basihyoid bone with associated bone lysis, highly vascularized capsules with central poorly contrast enhancing areas. In all cases there was laryngeal wall infiltration, in two dogs invasion of the laryngeal lumen and in one case invasion of the ventral muscular and subcutaneous plane. Metastases were found in retropharyngeal lymph nodes (three cases) and in the lung (two cases). Ectopic thyroid carcinoma should be considered in the differential diagnosis when a mass in the basihyoid region is present. Described CT features may be typical for ectopic thyroid neoplasia and could be used to help decide the therapeutic plan.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/23790190/