Imaging Diagnosis—Magnetic Resonance Imaging Of Diffuse Leptomeningeal Oligodendrogliomatosis In A Dog With “Dural Tail Sign”

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Lobacz MA, Serra F, Hammond G, et al.

Veterinary Radiology & Ultrasound 2018;59:E1-E6.

A case of diffuse leptomeningeal oligodendrogliomatosis affecting the brain and spinal cord of a dog is presented. A 7.5-year old, male neutered Staffordshire bull terrier presented for evaluation of a chronic history of tetraparesis and seizures, with a multifocal neuroanatomical localization was determined. Extra-axial intradural lesions with an atypical presentation of a dural tail sign were seen on MRI. Histologically, the lesions were consistent with leptomeningeal oligodendrogliomatosis. To the authors’ knowledge, a dural tail sign has not previously been reported as an MRI characteristic of diffuse leptomeningeal oligodendrogliomatosis in dogs.