Basal skull view X-ray is best to visualize
submento veical view This view is taken with veex near the film and x-ray beam projected at right angles to the film from submental area. Structures seen are External auditory canal Middle ear cleft i.e. mastoid air cells, middle ear and eustachian tube Internal auditory canal Sphenoid sinus Foramen ovale Carotid canal (Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 493)
Ethmoid sinus
Frontal sinus
Sphenoid sinus
Maxillary sinus
Nose and paranasal sinuses