9%) on a patient with perisinus abscess, 1 on a patient with subdural empyema, 1 on a patient with an epidural abscess and cavernous sinus thrombosis
, and 1 on a patient with suspected sigmoid sinus thrombosis.
8) Progression can lead to orbital cellulitis, orbital apex syndrome, cavernous sinus thrombosis
, and eventually fatal involvement of the central nervous system.
11) Their system classifies orbital infections into five stages: periorbital cellulitis (stage I), orbital cellulitis (stage II), subperiosteal abscess (stage III), orbital abscess (stage IV), and cavernous sinus thrombosis
The spectrum of complications ranges from relatively benign orbital cellulitis to potentially fatal intracerebral abscess or cavernous sinus thrombosis
Chandler et al defined the five stages of orbital complications of sinusitis as inflammatory edema, orbital cellulitis, subperiosteal abscess, orbital abscess, and cavernous sinus thrombosis
Neurologic sequelae can include meningitis, brain abscess, and cavernous sinus thrombosis