Peer-reviewed veterinary case report
CT scan features of thyroid tumors in 19 dogs
By Deitz, K et al.·Published in The Journal of small animal practice·2014·Department of Veterinary Clinical Sciences, United States·View original on PubMed →
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Original publication title: Computed tomographic appearance of canine thyroid tumours.
- Species:
- dog
Plain-English summary
A group of dogs with thyroid tumors underwent neck scans to better understand their characteristics. Most of these tumors were found to be carcinomas, and many showed signs of invasion into nearby tissues. The scans helped identify features like mineralization and the tumors' shapes, which could aid in diagnosis. While the ability to feel the tumor's movement was somewhat helpful, it wasn't a reliable indicator of whether the tumor was invasive. The scans provided valuable information that could guide treatment decisions for affected dogs.
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Abstract
OBJECTIVES: To describe the computed tomography features of canine thyroid tumours. METHODS Retrospective study of records of dogs with a thyroid tumour and neck computed tomography. Neck computed tomographies were evaluated for tumour characteristics. Thoracic radiographs and computed tomographies were evaluated for lung nodules. RESULTS: Of 19 identified cases, 17 were carcinomas and 2 were adenomas; 12 had mineralisation, 16 had heterogeneous attenuation and 16 were unilateral. Tumours were located from the temporomandibular joint to C5. Sixteen had well-defined margins postcontrast. Tumours were ovoid and mean volume was 57·4 cm(3) . By computed tomography, eight had definitive or possible invasion into surrounding structures; all eight were histopathologically invasive carcinomas. Five histopathologically non-invasive tumours and two adenomas had no computed tomography invasion into surrounding structures. Four had complete palpable mobility (two adenomas and two histopathologically invasive carcinomas); one had computed tomography evidence of possible invasion. The sensitivity of palpable mass mobility to determine histopathological invasion was 71% with 0% specificity. The sensitivity of computed tomography invasion to determine histopathological invasion was 70% with 100% specificity. CLINICAL SIGNIFICANCE: Computed tomography scans revealed several common features. Palpable mass mobility was not definitive for lack of histopathological invasion. Computed tomography invasion was specific but not very sensitive for histopathological invasion.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/24702524/