A nondescript male dog, around one year old, was brought with a history of loss of appetite and limping in the right front leg. The dog had not received any vaccinations and had been treated previously by a local veterinarian for the loss of appetite. During the clinical examination, the dog showed difficulty in swallowing, anisocoria, protrusion of the third eyelid, miosis in right eye. The dog also had mild lameness in the right front leg, but no visible injuries were observed. Radiograph was taken, but it did not reveal any foreign bodies and no osseous involvement was found. The dog was kept under observation and gradually developed paralysis and collapsed. A postmortem examination was conducted, and Negri bodies were found. This case was confirmed as rabies, which had presented with an unusual Horner's sign.

Horner’s syndrome, Rabies

This research underscores the importance of recognizing the possibility of rabies as a potential explanation when Horner's syndrome is evident. Further investigation is required to understand the underlying reasons for the occurrence of these atypical symptoms. Additionally, confirmation is needed to determine whether these signs are associated with the typical rabies strain or if they might be linked to different variants of the virus.

P.K. Ramkumar, N. Premalatha, M. Saravanan, S. Senthil Kumar, R. Velusamy and P.C. Prabhu (2023). An Unusual Presentation of Rabies with Horner’s Syndrome in a Dog. Biological Forum – An International Journal, 15(8): 267-269.