Figure 2a. Acute incipient mastoiditis in a 3-year-old girl with suspected right acute mastoiditis. (a, b) Axial CT scans of the temporal bone (a obtained inferior to b) show increased attenuation of the entire right middle ear with no osseous defects. Note the normal aeration of the tympanum and mastoid cells on the left side. (c) Axial contrast material-enhanced CT scan shows no complications.