Pneumocephalus is seen in fracture of
Pneumocephalus is the presence of air or gas within the cranial cavity.Pneumocephalus is seen in fracture of frontal sinus (Posterior table); may also be seen in ethmoid fracturesRef: Hazarika; 3rd ed; Pg 355
Maxillary sinus
Frontal sinus
Sphenoid sinus
Mastoid antrum
Nose and paranasal sinuses