Chronic otitis media and middle ear variants: Is there relation?

Figure 3 Axial computed tomography image and illustration. A: Axial computed tomography image shows that the roof of the jugular bulb (red arrow) is much higher than the basal turn of cochlea (yellow arrow); B: Illustration of middle ear cavity in coronal plane show jugular bulb colored as blue is slightly higher than the basal turn of cochlea; C: Axial computed tomography image shows that there is not a bone roof above jugular bulb and it is in direct contact with middle ear cavity (red arrow), tympanic membrane; D: When comparing with B we cannot see the bonny roof of jugular bulb.