complication of acute sinusitis:

A,B,C and D mucocele and pyocele and pnuematocele are complications of chronic sinusitis. local complications of acute sinusitis: subperiosteal abscess osteomyelitis orbital cellulitis preseptal cellulitis post septal cellulitis orbital abscess cavernous sinus thrombosis maxillary sinusitis sphenoid sinusitis Systemic complications: Brain abscess meningitis toxic shock syndrome Ref Scott Brown 7/e,Vol 2,p 1539,1540.