Which among the following sinus is affected in children most commonly:: (A) Sphenoid, (B) Ethmoid, (C) Frontal, (D) Maxillary
Answer is B. Acute ethmoid sinusitis Aetiology Acute ethmoiditis is often associated with infection of other sinuses. Ethmoid sinuses are more often involved in infants and young children. (Ref: Diseases of ENT, PL Dhingra, 7th edition, of no. 216)