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Veterinary Radiology

Teaching and learning about veterinary diagnostic imaging.

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10 year old Boxer

October 26, 2017 By Allison Zwingenberger

Today’s case is a 10-year-old male neutered Boxer with a six-week history of progressive cerebral signs. He is growling at the owner, circling, and pacing to the left. He has incontinence and is incoordinated. He has had two seizure episodes. What is your diagnosis?

K9 Brain O-Sag T1 SE S
Oax T1 SE S
O-Ax PD&T2 FSE-V S
K9 Brain O-Ax Flair irFSE S
O-Ax T2* GRE S
O Ax T1 SE S Contrast
O-Sag T1 SE S Contrast
O-COR T1 SE S Contrast
Show findings...

Findings

Axial and sagittal T1 weighted and axial T2 weighted, FLAIR, and T2* weighted images were acquired. Left is on the left side of the images. There is a large, round intra-axial mass located at the rostral aspect of the left caudate nucleus that is expanding dorsally resulting in rightward deviation of the falx cerebri. This lesion is slightly hypointense on T1 and hyperintense on T2 weighted and FLAIR images, with central contrast enhancement. On the FLAIR images, there is hyperintensity of the parenchyma around the rostral aspect of both lateral ventricles that extends into the white matter. The changes are more severe on the left hemisphere than the right. There is bilateral dilation of the lateral ventricles and compression of the left lateral ventricle by the mass. There is flattening of the rostral cerebellum but no evidence of herniation into the foramen magnum.

Show differential diagnosis

Differential Diagnosis

The intra-axial mass is most consistent with a glioma with secondary hydrocephalus and periventricular edema.

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Diagnosis

Oligodendroglioma grade II

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

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