Arrested pneumatization of the sphenoid sinus

Arrested pneumatization of the sphenoid sinus is a normal anatomic variant which may be mistaken for pathology. Suspected cases of arrested pneumatization of the sphenoid sinus on cone beam CT and multidetector CT scans are presented. Pertinent imaging findings and differential diagnosis are discussed. Palabras clave: arrested pneumatization, cone beam computed tomography, sphenoid sinus