Antrum of Highmore is?
The antrum of Highmore is maxillary sinus. It is the largest of paranasal sinuses and occupies the body of the maxilla. (Reference: Textbook of PL Dhingra and Shruti Dhingra; 7th edition, pg no. 209)
Maxillary
Ethmoid
Sphenoid
Frontal
Nose and paranasal sinuses