This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and paranasal sinuses, Subject name: ENT
complication of acute sinusitis: 
Select and explain. 
A. orbital cellulitis, B. Potts puffy tumor, C. Conjunctival chemosis, D. Subduram abscess
B: Potts puffy tumor
Answer: B: Potts puffy tumor 
Explanation: 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.