CT TEMPORAL BONES WITHOUT CONTRAST:
CLINICAL HISTORY: 6 years of age, Male, right-sided hearing loss.
FINDINGS:
There is no abnormality of the visualized brain.
RIGHT TEMPORAL BONE:
The middle ear cavity is clear.
The cochlea is preserved.
The vestibular aqueduct is not enlarged.
The mastoid air cells are clear.
The
tegmen demonstrates no dehiscence.
LEFT TEMPORAL BONE:
The external auditory canal is intact.
The tympanic membrane is preserved.
The scutum is intact.
The middle ear cavity is clear.
The cochlea is preserved.
The vestibule is intact.
The semicircular canals (superior, lateral, and posterior) are intact.
The vestibular aqueduct is not enlarged.
The facial nerve canal is without abnormality.
The internal auditory canal is preserved.
The mastoid air cells are clear.
The tegmen demonstrates no dehiscence.
The skull base foramina are intact.
IMPRESSION:
1. Right incudomalleolar subluxation/dislocation. Additionally, the right incostapedial articulation is not well delineated and appears asymmetric compared with the left. Normal appearance of the right inner ear structures.
2. No left temporal bone abnormality.