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Imaging Diagnosis—Synovial Myxoma of Lumbar Vertebrae Articular Process Joint

Blair W.H., Levine J.M., Kerwin S.C., et al.

Veterinary Radiology & Ultrasound, 2011. 52(3): p.309-312.

Magnetic resonance (MR) imaging and histopathology were used to diagnose an articular process synovial myxoma in a dog. On MR images, the tumor was characterized by distortion of the left L1–L2 articular process, widening of the articular process joint, and the presence of a mass contiguous with the synovium of the articular process that displaced the spinal cord. The tumor was T2-hyperintense, T1-hypointense, relative to muscle, and had mild contrast enhancement. The MR features of articular process synovial myxoma may be distinct from other diseases of the articular process joint.