What causes periorbital cellulitis?

Updated: Jul 31, 2018
  • Author: Bobak Zonnoor , MD; Chief Editor: Gil Z Shlamovitz, MD, FACEP  more...
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Periorbital cellulitis can occur by several mechanisms, including the following [2, 8] :

  • Infection as a result of local trauma, including insect bites

  • Infection as a result of spread from contiguous structures, as in conjunctivitis, hordeolum, lacrimal system infections, and impetigo

  • Infections secondary to hematogenous spread during bacteremia due to nasopharyngeal pathogens

  • Infection secondary to sinusitis, causing venous and lymphatic congestion - Sinusitis may be of odontogenic origin [9] ; thorough examination of dentition may be warranted

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