Odontogenic sinusitis causing orbital cellulitis

Background. Odontogenic sinusitis is a well- that usually is responsive to standard medical and surgical treatment. Current antibiotic therapy recomme ndations are directed against the usual odontogenic and sinus flora. Case Description. The authors present a case of a Patient with acute sinusi tis initiated by a complicated tooth extraction that did not yield readily to standard treatment. The case was complicated by orbital extension of the sinusitis. The authors isolated methicillin-resistant Staphylococcus aureu s, or MRSA, species from the affected sinus that usually is not encountered in uncomplicated acute nonnosocomial or odontogenic sinusitis. Clinical Implications. Though such forms of resistant microbial flora as MR SA are rare, they may be. seen in patients who have a history of intravenou s, or TV: drug use and in immunocompramised patients. Management of patient s; with orbital extension of sinusitis requires hospitalization and IV anti biotic treatment.