Orbital abscess following subtenon triamcinolone injection.

bitis can progress very rapidly— often in a matter of hours—and even with appropriate surgical and antibiotic treatment, it can be fatal or result in serious complications. Escardo et al reported a case of orbital cellulitis caused by F necrophorum that required 3 urgent surgical interventions and 30 days of intravenous antibiotic treatment. Despite this intensive treatment, the patient’s vision did not fully recover. Early examination of the patient with only a 1-day history of proptosis may have allowed early diagnosis and treatment and possibly helped to preserve sight. This case also illustrates the prolonged period that may be required to isolate Fusobacterium organisms. It is therefore imperative that cultures be allowed a protracted incubation period so that important pathogens are not missed following isolation of rapidly growing pathogens, resulting in inappropriate antimicrobial therapy. Although rare, F nucleatum can be a cause of severe septic thrombophlebitis of the orbit and cavernous sinus, which, despite intensive treatment,mayresult inseveremorbidity.