A case of orbital cellulitis arising from odontogenic sinusitis

We report a case of orbital cellulitis arising from odontogenic sinusitis in a 31-year-old woman with unilateral exophthalmus, diplopia, pain, and swelling extending to the orbit from the buccal region. The patient was admitted to our hospital. She was unable to open the left eye and had diplopia. Hypoesthesia was present in the left buccal region. In this patient, orbital cellulitis was arose from ethmoidal sinusitis via odontogenic sinusitis. We operated to open the sinus and drain the orbit. Surgical treatment was necessary in this patient because orbital cellulitis can produce serious complications, such as optic neuritis, optic atrophy leading to loss of vision, cavernous sinus thombosis, orbital apex syndrome, meningitis, brain abscess, and death.