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Vetdle Archive

Archive Case #193: Canine Granulomatous Meningoencephalitis

Dog veterinary case - Hard - September 12, 2026

Clinical Clues

  1. A small-breed dog is evaluated for a progressive head tilt, circling, and seizures.
  2. The owner reports the signs have worsened over several days rather than appearing all at once.
  3. Neurological examination identifies multifocal deficits affecting both mentation and cranial nerve function.
  4. Advanced imaging reveals inflammatory-appearing lesions within the central nervous system.
  5. CSF analysis supports a non-suppurative inflammatory encephalitis after infectious causes are reduced in likelihood.
  6. This idiopathic inflammatory disease of the canine central nervous system is commonly abbreviated as GME.

Diagnosis

Canine Granulomatous Meningoencephalitis

This case is most consistent with Canine Granulomatous Meningoencephalitis because the dog has progressive multifocal neurologic disease with inflammatory CNS findings and no better infectious explanation. The most important clues are the small-breed signalment and multifocal encephalitic pattern, which make a single focal brain tumour less likely.

Learning review

Review the case evidence

Use the paired clues to explain how the evidence in this dog case supports the provided diagnosis, Canine Granulomatous Meningoencephalitis, then compare your reasoning with the case explanation.

Evidence checkpoints

Clues 1-2

  1. Clue 1: A small-breed dog is evaluated for a progressive head tilt, circling, and seizures.
  2. Clue 2: The owner reports the signs have worsened over several days rather than appearing all at once.

Clues 3-4

  1. Clue 3: Neurological examination identifies multifocal deficits affecting both mentation and cranial nerve function.
  2. Clue 4: Advanced imaging reveals inflammatory-appearing lesions within the central nervous system.

Clues 5-6

  1. Clue 5: CSF analysis supports a non-suppurative inflammatory encephalitis after infectious causes are reduced in likelihood.
  2. Clue 6: This idiopathic inflammatory disease of the canine central nervous system is commonly abbreviated as GME.

Self-review prompts

  1. After clues 1-2, what evidence from this dog case shaped your initial interpretation?
  2. When you compare clues 3-4 with clues 1-2, what changed in your reasoning about Canine Granulomatous Meningoencephalitis?
  3. How do clues 5-6 align with the case explanation for Canine Granulomatous Meningoencephalitis?

Educational Use

Vetdle archive cases are educational veterinary games for diagnostic reasoning practice. They do not provide veterinary advice, diagnosis, treatment, or professional medical guidance.