Chordoma of the thoracic vertebrae in a Bengal tiger (Panthera tigris tigris)

A 19-year-old female Bengal tiger (Panthera tigris tigris) was presented with hind limb weakness, ataxia and respiratory distress. Computed tomography revealed a mass between the left side of the T7 vertebra and the base of the left 7th rib. The tiger then died, and necropsy was performed. Grossly,...

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Published in:Journal of Veterinary Medical Science 2015, Vol.77(7), pp.893-895
Main Authors: KURAMOCHI, Mizuki, IZAWA, Takeshi, HORI, Mayuka, KUSUDA, Kayo, SHIMIZU, Junichiro, ISERI, Toshie, AKIYOSHI, Hideo, OHASHI, Fumihito, KUWAMURA, Mitsuru, YAMATE, Jyoji
Format: Article
Language:English
Subjects:
Animals
chordoma
Chordoma - diagnosis
Chordoma - pathology
Chordoma - veterinary
Female
neurological symptom
Pathology
Spinal Neoplasms - diagnosis
Spinal Neoplasms - pathology
Spinal Neoplasms - veterinary
Thoracic Vertebrae - pathology
tiger
Tigers
Tomography, X-Ray Computed - veterinary
vertebral tumor
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creator KURAMOCHI, Mizuki
IZAWA, Takeshi
HORI, Mayuka
KUSUDA, Kayo
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ISERI, Toshie
AKIYOSHI, Hideo
OHASHI, Fumihito
KUWAMURA, Mitsuru
YAMATE, Jyoji
description A 19-year-old female Bengal tiger (Panthera tigris tigris) was presented with hind limb weakness, ataxia and respiratory distress. Computed tomography revealed a mass between the left side of the T7 vertebra and the base of the left 7th rib. The tiger then died, and necropsy was performed. Grossly, the vertebral mass was 6 × 5.7 × 3 cm, and invaded the adjacent vertebral bone and compressed the T7 spinal cord. Histologically, the mass was composed of large, clear, vacuolated and polygonal cells with osteochondral matrix. Cellular and nuclear atypia were moderate. The vacuolated cells stained positively for cytokeratin and vimentin and negatively for S-100. Based on these findings, the present case was diagnosed as a vertebral chordoma; the first report in a tiger.
doi_str_mv 10.1292/jvms.14-0658
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subjects Animals
chordoma
Chordoma - diagnosis
Chordoma - pathology
Chordoma - veterinary
Female
neurological symptom
Pathology
Spinal Neoplasms - diagnosis
Spinal Neoplasms - pathology
Spinal Neoplasms - veterinary
Thoracic Vertebrae - pathology
tiger
Tigers
Tomography, X-Ray Computed - veterinary
vertebral tumor
title Chordoma of the thoracic vertebrae in a Bengal tiger (Panthera tigris tigris)
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