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KMID : 1094020140310030237
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Journal of Veterinary Clinics
2014 Volume.31 No. 3 p.237 ~ p.240
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Imaging Features of Solitary Spinal Plasmacytoma in a Dog
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Keh Seo-yeon
Choi Mi-Hyun
Lee Nam-Soon
Kim Tae-Hyun
Jang Jae-Young
Kim Hyun-Wook
Yoon Jung-Hee
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Abstract
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A 12-year-old, intact, female Alaskan malamute presented with severe spinal pain and hind limb lameness. On radiographs, a round, demarcated lytic lesion was identified in the central fifth lumbar vertebra. On magneticresonance imaging (MRI), the lesion involving the spinal cord appeared hypointense on T1 weighted, hyperintenseon T2 weighted, heterogeneously enhanced on post-contrast T1 weighted, and hypointense on GE images. A focal,small, ill-defined, lytic lesion was also observed radiographically in the sixth lumbar vertebra, it appeared as a focalhyperintense lesion on T1 weighted, T2 weighted, and GE images and showed focal enhancement on post-contrastT1 weighted images. She was euthanized owing to extreme pain and severe and progressive clinical signs; aplasmacytoma was histopthologically diagnosed. This report presents an unusual type of spinal tumor, plasmacytoma. MRI is a useful modality to evaluate the anatomic location and extension of spinal lesions.
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KEYWORD
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spinal tumor, solitary plasmacytoma, dog, radiography, MR imaging
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