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The vestibular aqueduct is enlarged, measuring 3.0 mm in width. | 1 |
The vestibular aqueduct is enlarged, measuring 3.2 mm in width. | 1 |
IMPRESSION: Bilateral enlargement of the vestibular aqueduct, more prominent on the left side. | 1 |
Both cochlear nerves appear normal. | 0 |
The left internal auditory canal is small. | 1 |
The cochlear nerve is not identified. | 1 |
The facial and vestibular nerves are present. | 0 |
There is trace mucosal thickening in the left mastoid air cells. | 1 |
There is minimal linear T2 signal of the left mastoid air cells. | 1 |
COMPARISON: None FINDINGS: On the right side, there is soft tissue in the external auditory canal. | 1 |
The mastoid air cells are well pneumatized for the age of the patient. | 0 |
COMPARISON: Temporal bone CT dated [**Date**] FINDINGS: On the right side, the external auditory canal is patent. | 0 |
Thin coronal T2 through the internal auditory canal were also obtained with coronal and sagittal reconstructions. | 1 |
COMPARISON: None FINDINGS: Evaluation of the internal auditory canals demonstrates no evidence of mass lesion, abnormal signal intensity or pathologic enhancement. | 0 |
Unremarkable MRI of the brain and internal auditory canals. | 0 |
The cochlear nerve is present but appears smaller than the facial and vestibular nerves. | 1 |
The cochlear nerve is present but appears smaller than the facial and vestibular nerves. | 1 |
Given the limitations of motion, the right cochlear nerve appears somewhat diminutive, suggestive of hypoplasia. | 1 |
The left cochlear nerve appears essentially unremarkable. | 0 |
Small amount of soft tissue is seen in Prussak's space extending to the external auditory canal.Scutum appears blunted and there are multiple erosions involving the ossicles. | 1 |
Small amount of soft tissue is seen in Prussak's space extending to the external auditory canal.Scutum appears blunted and there are multiple erosions involving the ossicles. | 1 |
Small amount of soft tissue is seen in Prussak's space extending to the external auditory canal.Scutum appears blunted and there are multiple erosions involving the ossicles. | 1 |
The stapes is not visualized. | 1 |
The incus is incompletely visualized. | 1 |
The tympanic membrane is poorly seen and may be thickened and retracted. | 1 |
The vestibular aqueduct is identified and is not enlarged. | 0 |
On the left side, there is soft tissue debris within the left external auditory canal. | 1 |
The external auditory canals are hypoplastic. | 1 |
The middle ear cavities are very narrow without definite identification of the ossicles. | 1 |
There is absense of formation of normal mastoid air cells bilaterally. | 1 |
External auditory canals are hypoplastic. | 1 |
Bone external auditory canals are severely narrowed. | 1 |
The visualized paranasal sinuses and mastoid air cells are well pneumatized. | 0 |
The head of the malleus abuts the anterior wall of the middle ear, but there is no definite gross adhesion. | 1 |
The ossicles are otherwise unremarkable. | 0 |
There is thinning of the roof of the right superior semicircular canal noted, but definite dehiscence is not convincingly demonstrated. | 1 |
Otherwise, the inner ear structures, vestibule, and cochlea are unremarkable. | 0 |
Otherwise, the inner ear structures, vestibule, and cochlea are unremarkable. | 0 |
The ossicles are unremarkable. | 0 |
IMPRESSION: Thinning of the roof of the right superior semicircular canal. | 1 |
The mastoid air cells and middle ear cavities have cleared since the [**Date**] examination. | 0 |
The remainder of the sinuses and mastoid air cells are otherwise normal appearance. | 0 |
The middle ear cavities and mastoid air cells. | 0 |
Although not a dedicated study to evaluate the temporal bones, there is suggestion of absence or hypoplasia of the semicircular canals bilaterally. | 1 |
There is bilateral mild external auditory canal narrowing. | 1 |
The vestibules and cochlea are dysplastic bilaterally. | 1 |
The vestibules and cochlea are dysplastic bilaterally. | 1 |
The superior and lateral semicircular canals are not visualized. | 1 |
The left stapes footplate does not appear to enter the oval window. | 1 |
The remainder of the bilateral ossicles appear unremarkable. | 0 |
The mastoid air cells are underpneumatized and clear. | 1 |
Bilateral aplasia of the superior and lateral semicircular canals, hypoplasia of the posterior semicircular canals, and dysplasia of the bilateral vestibules and cochlea. | 1 |
Bilateral aplasia of the superior and lateral semicircular canals, hypoplasia of the posterior semicircular canals, and dysplasia of the bilateral vestibules and cochlea. | 1 |
Bilateral aplasia of the superior and lateral semicircular canals, hypoplasia of the posterior semicircular canals, and dysplasia of the bilateral vestibules and cochlea. | 1 |
Malposition of the left stapes as noted. | 1 |
Bilateral vestibules are small and dysmorphic. | 1 |
In the expected locations the vestibular aqueducts are not identified. | 1 |
The fundi of the internal auditory canals are dysmorphic and widened. | 1 |
The anterior one of them runs to the cochlea. | 0 |
On one of the axial images there is a suggestion of a very thin nerve in the superior portion of the internal auditory canal. | 1 |
Within the right IAC, the larger nerve gives 2 small branches running in the inferior compartment and the anterior one of them runs to the cochlea. | 1 |
The external auditory canals appear patent. | 0 |
IMPRESSION: - Bilateral severe semicircular canal aplasia. | 1 |
Dysplasia of vestibules, basal turns of cochleas and fundi of the internal auditory canals. | 1 |
Dysplasia of vestibules, basal turns of cochleas and fundi of the internal auditory canals. | 1 |
- Presence of bilateral cochlear nerves but suspicion for bilateral hypoplastic partially absent vestibular nerves and hypoplastic left facial nerve. | 1 |
- Presence of bilateral cochlear nerves but suspicion for bilateral hypoplastic partially absent vestibular nerves and hypoplastic left facial nerve. | 1 |
COMPARISON: None FINDINGS: The external auditory canals are patent bilaterally. | 0 |
The bilateral vestibules are dilated. | 1 |
The vestibular aqueducts are enlarged bilaterally. | 1 |
There is a questionable linear area of lucency around the cochlear and the part of the vestibule on each side. | 1 |
There is a questionable linear area of lucency around the cochlear and the part of the vestibule on each side. | 1 |
Absence of the semicircular canals bilaterally. | 1 |
Bilateral dilatation of the vestibules. | 1 |
Bilateral enlarged vestibular aqueducts. | 1 |
Questionable linear area of lucency around the cochlear and the part of the vestibule on each side. | 1 |
Questionable linear area of lucency around the cochlear and the part of the vestibule on each side. | 1 |
The external auditory canals are patent. | 0 |
The inner ear structures, including the semicircular canals, vestibules, and cochleas are unremarkable on both sides. | 0 |
The inner ear structures, including the semicircular canals, vestibules, and cochleas are unremarkable on both sides. | 0 |
The visualized mastoid air cells and paranasal sinuses are clear. | 0 |
Mild scattered mucosal thickening is noted within the visualized paranasal sinuses and mastoid air cells bilaterally. | 1 |
There is ossification within nearly the entire cochlea extending from the basal turn to apex. | 1 |
A few portions of the right cochlea lumen appear free of ossification. | 0 |
The vestibule is also slightly dysmorphic. | 1 |
The ossicles are grossly intact. | 0 |
Additionally, the semicircular canals are involved by the ossification, right much more than left. | 1 |
The cochlear nerve is not identified, and appears to be absent or significantly hypoplastic. | 1 |
IMPRESSION: Nonvisualized left cochlear nerve, likely absent or severely hypoplastic. | 1 |
COMPARISON: None FINDINGS: On the right side, there is minimal debris in the external auditory canal; otherwise the external auditory canal is unremarkable. | 0 |
On the left side, there is minimal debris in the external auditory canal; otherwise the external auditory canal is unremarkable. | 0 |
On the left side, the external auditory canal is patent but somewhat tortuous, which is likely a normal anatomic variant. | 0 |
No abnormality identified in internal ears / auditory canals. | 0 |
The right cochlear nerve is present, but smaller in caliber compared to the left. | 1 |
Normal left cochlear nerve. | 0 |
The fracture line passes through the left middle ear cavity, mastoid air cells. | 1 |
The left external auditory canal is occluded. | 1 |
The ossicles and inner ear structures, including the semicircular canals, vestibule and cochlea are intact. | 0 |
The ossicles and inner ear structures, including the semicircular canals, vestibule and cochlea are intact. | 0 |
The ossicles and inner ear structures, including the semicircular canals, vestibule and cochlea are intact. | 0 |
Subsets and Splits