Imaging diagnosis—concentric periradicular lipoma causing lumbar nerve root compression in a dog
2017
Wahle, Andrea M | Raith, Karina | Posch, Barbara | Eddicks, Lina | Matiasek, Kaspar | Jurina, Konrad
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.
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