Archive Case #44: Rabbit Encephalitozoonosis

Clinical Clues

1. A pet rabbit is presented for a progressive head tilt and loss of balance.
2. The owner reports intermittent rolling episodes and difficulty reaching food from the bowl.
3. Neurological examination reveals vestibular dysfunction with hindlimb weakness.
4. A subtle white opacity is visible within one eye.
5. Findings are supportive of infection with Encephalitozoon cuniculi after other major differentials are considered.
6. This protozoal disease of rabbits can affect the nervous system, kidneys, and eyes.

Diagnosis

Rabbit Encephalitozoonosis

This case is most consistent with Rabbit Encephalitozoonosis because the rabbit has vestibular signs with hindlimb weakness and ocular involvement compatible with Encephalitozoon cuniculi. The most important clues are the head tilt, rolling, and lens change, which make a purely local ear problem less likely.

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.