IMAGING DIAGNOSIS—CONCENTRIC PERIRADICULAR LIPOMA CAUSING LUMBAR NERVE ROOT COMPRESSION IN A DOG

An 11‐year‐old, male neutered Jack Russell Terrier was presented with a nerve root signature of the right pelvic limb. Magnetic resonance imaging revealed a well demarcated, ovoid, extramedullary mass at the level of the L7 vertebral body. This showed, compared to normal spinal cord, hyperintense si...

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Bibliographic Details
Published in:Veterinary radiology & ultrasound 2017-01, Vol.58 (1), p.E6-E10
Main Authors: Wahle, Andrea M, Raith, Karina, Posch, Barbara, Eddicks, Lina, Matiasek, Kaspar, Jurina, Konrad
Format: Article
Language:English
Subjects:
Animals
canine
computed tomography
Diagnosis, Differential
Dog Diseases - diagnosis
Dog Diseases - diagnostic imaging
Dog Diseases - etiology
Dogs
Lipoma - complications
Lipoma - diagnosis
Lipoma - diagnostic imaging
Lipoma - veterinary
lipomatosis
magnetic resonance imaging
Magnetic Resonance Imaging - veterinary
Male
nerve root signature
Radiculopathy - diagnosis
Radiculopathy - diagnostic imaging
Radiculopathy - etiology
Radiculopathy - veterinary
Tomography, X-Ray Computed - veterinary
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Summary:An 11‐year‐old, male neutered Jack Russell Terrier was presented with a nerve root signature of the right pelvic limb. Magnetic resonance imaging revealed a well demarcated, ovoid, extramedullary mass at the level of the L7 vertebral body. This showed, compared to normal spinal cord, hyperintense signal on T1‐ and T2‐weighted images, which was suppressed on gradient echo short tau inversion recovery (GE‐STIR) images. Additionally, the mass was characterized by a fat density on computed tomography images. Histopathology of the surgically excised mass was consistent with concentric periradicular lipoma, which has not been described in domestic animals yet.
ISSN:1058-8183
1740-8261
DOI:10.1111/vru.12372