Spindle‐cell thymoma colliding with a bronchogenic cyst in a Yorkshire terrier

An 8‐year‐old male Yorkshire terrier was presented to the Tufts Veterinary Hospital for evaluation of increased respiratory effort. A mediastinal mass composed of a spindle‐cell thymoma within a bronchogenic cyst was diagnosed with computed tomography thoracic imaging, ultrasound‐guided fine‐needle...

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Bibliographic Details
Published in:Veterinary clinical pathology 2023-12, Vol.52 (4), p.709-715
Main Authors: Kline, Stephanie, Manley, Sabrina R., Timothy, Clare, Jennings, Samuel H., Nolen‐Walston, Rose, Conrado, Francisco O.
Format: Article
Language:English
Subjects:
cytology‐histology correlate
fine‐needle aspirate
mediastinal mass
neoplasia
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Summary:An 8‐year‐old male Yorkshire terrier was presented to the Tufts Veterinary Hospital for evaluation of increased respiratory effort. A mediastinal mass composed of a spindle‐cell thymoma within a bronchogenic cyst was diagnosed with computed tomography thoracic imaging, ultrasound‐guided fine‐needle aspirate biopsy, and histopathologic evaluation after surgical removal. Histologic evaluation showed a multilocular cyst structure as well as a mass characterized by spindle to polygonal thymic epithelial cells. The cyst was characterized by a lining of ciliated pseudostratified respiratory epithelium. To the authors' knowledge, this is the first report of a spindle‐cell thymoma being associated with a mediastinal bronchogenic cyst in a dog.
ISSN:0275-6382
1939-165X
DOI:10.1111/vcp.13301