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Media type:
E-Article
Title:
Coccygeal Chordoma in a Dog
Contributor:
Munday, John S.;
Brown, Cathy A.;
Weiss, Raul
imprint:
SAGE Publications, 2003
Published in:Journal of Veterinary Diagnostic Investigation
Language:
English
DOI:
10.1177/104063870301500312
ISSN:
1040-6387;
1943-4936
Origination:
Footnote:
Description:
<jats:p>A 4-cm diameter spherical mass was removed from the region of the second coccygeal vertebra of a 6-year-old female Doberman Pinscher dog. The mass had been present for 7 months and was described as multilobular and smooth. Histologically, the neoplasm consisted of small spindle-shaped cells surrounding lobules of large vacuolated polygonal cells. Mucin was present within most lobules. The large polygonal cells stained positively with antibodies against vimentin, cytokeratin, and S-100 protein. Although the spindle-shaped cells stained positively with antibodies against vimentin, they only occasionally contained cytokeratin. The histology and immunohistochemistry are consistent with that reported for chordoma. Although 4 chordomas have previously been reported in dogs, this is the first case in which immunohistochemistry has been used to support the histological diagnosis. Neither recurrence nor metastasis was reported 10 months after surgical excision.</jats:p>