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Characteristics of magnetic resonance images of granulomatous meningoencephalomyelitis in 11 dogs
  1. G. B. Cherubini, DVM, MRCVS1,
  2. S. R. Platt, BVM&S, DECVN, DACVIM, MRCVS2,
  3. T. J. Anderson, BVM&S, MVM, PhD, DSAO, DECVN, MRCVS3,
  4. C. Rusbridge, BVMS, DECVN, MRCVS4,
  5. V. Lorenzo, DVM, DECVN5,
  6. P. Mantis, DVM, DECVDI, ILTM, MRCVS1 and
  7. R. Cappello, DVM, PhD, DECVN, MRCVS1
  1. 1Queen Mother Hospital for Animals, Royal Veterinary College, North Mymms, Hertfordshire AL9 7TA
  2. 2Centre for Small Animal Studies, Animal Health Trust, Lanwades Park, Newmarket, Suffolk CB8 7UU
  3. 3University of Glasgow Veterinary School, Bearsden Road, Bearsden, Glasgow G61 1QH
  4. 4Stone Lion Veterinary Centre, Goddard Veterinary Group, 41 High Street, Wimbledon, London SW19 5AU
  5. 5Centro Veterinario Prado de Boadilla, Alberca 5, 28660 Boadilla, Madrid, Spain


The characteristics of magnetic resonance imaging (mri) of the brains and spinal cords of 11 dogs with histologically confirmed granulomatous meningoencephalomyelitis (gme) were determined. The lesions were in the brain of eight of the dogs, in the brain and spinal cord of two, and in the spinal cord alone in one dog. A single lesion was present in four of the dogs and multiple lesions were found in six. In one dog with intracranial signs, no visible lesions could be detected on mri. No meningeal enhancement was detected in T1-weighted images post-contrast, or in fluid attenuation inversion recovery (flair) images, but there were histological lesions in the meninges in nine of the dogs. The T2-weighted images and flair sequences were characterised in all cases by hyperintensity, whereas the signal intensity of the lesions on T1-weighted images was variable. After the administration of paramagnetic contrast, some of the lesions showed no enhancement, but others showed marked patterns of enhancement. The lesions in 10 of the dogs were easily identifiable by mri and the images had several unifying characteristics, but they could not be considered disease-specific.

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