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Veterinary Radiology

Teaching and learning about veterinary diagnostic imaging.

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8 year old Beagle

February 18, 2016 By Allison Zwingenberger

Today’s case is an 8-year-old male neutered Beagle mix with progressive paraparesis progressing to inability to walk over 4 months. Can you find the lesion?

R LAT Spine
R LAT Spine
VD Spine

Show findings...

Findings

On referral radiographs of the spine, there is marked widening of one side of the intervertebral foramen at L1-L2. This is best seen on the lateral projections. The margins of the foramen are smooth and sclerotic with no evidence of lysis.

Show differential diagnosis…

Differential Diagnosis

The widening of the intervertebral foramen is characteristic of a slowly progressive peripheral nerve sheath tumor.

Show diagnosis…

Diagnosis

Peripheral nerve sheath tumor (Schwannoma)
MRI confirmed the peripheral nerve sheath tumor at L1-L2. The mass was incompletely excised with a hemilaminectomy. The dog recovered neurologic function rapidly after surgery.

peripheral nerve sheath tumor AX T1 post fs
peripheral nerve sheath tumor DOR T1 post fs

Contrast enhanced T1 fat saturated images of the spine.

Filed Under: Canine, Case of the Day, CT/MRI, Neurologic, Radiographs

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