Which of the following sinus grows till early adulthood:-
Maxillary
Ethmoidal
Frontal
Sphenoid
Development of paranasal sinuses Sinus Present at bih 1st X-Ray appearance, Adult size Maxillary Yes 4-5 months after bih 15-18 yrs. Ethmoid Yes 1yr 12yr Sphenoid Yes 6-7yr 15yr Frontal No 4-5yr 18yr