Rare presentation of orbital zoonoses: A case report

A 55-year-old woman with uncontrolled diabetes presented with acute right eyelid swelling, mucoid nasal discharge for 20 days, and headache for 7 days. Examination showed lid edema and ethmoidal sinus tenderness, with normal visual acuity and extraocular movements (EOM). Computed Tomography (CT) confirmed preseptal cellulitis with ethmoidal sinusitis. Initial treatment was with IV meropenem and vancomycin. Worsening on the second day led to emergency functional endoscopic sinus surgery and orbital decompression. Cultures revealed Staphylococcus pseudintermedius , a zoonotic pathogen linked to pets. The patient had history of pet exposure. Antibiotic therapy was continued, and 2 ml of pus was drained on anterior orbitotomy. The patient recovered with improved EOM and reduced edema. This case highlights a rare zoonotic infection presenting as an orbital abscess.