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The left cochlear aperture (fossette) appears very stenotic, and the left cochlear nerve is not seen. | 1 |
Normal appearance of right inner ear structures and vestibulo-cochlear nerves. | 0 |
A myringotomy tube is seen laterally in the external canal and attached to the roof of the external canal. | 1 |
There seems to be incomplete partitioning between the middle and apical turns of the cochlea as they are not well seen. | 1 |
The vestibular aqueduct is enlarged compared to the right, with a diameter approximately 1.5 mm. | 1 |
The left vestibule looks minimally larger than the right. | 1 |
Laterally positioned right myringotomy tube in the external canal and attached to the roof. | 1 |
Large left vestibular aqueduct. | 1 |
There seems to be incomplete partitioning between the middle and apical turns of the cochlea bilaterally. | 1 |
Minimally larger left vestibule compared to right. | 1 |
The left cochlea is minimally smaller than the right, possibly within the limits of normal variation. | 0 |
The cochlea is otherwise unremarkable. | 0 |
Slight asymmetry in size of the cochlea, with the left minimally smaller than the right; this may be within the limits of normal variation. | 0 |
The images are motion degraded, but there is a bulbous appearance of the apical turn of the cochlea consistent with a mild degree of cochlear dysplasia. | 1 |
Semicircular canals and vestibule are unremarkable. | 0 |
Semicircular canals and vestibule are unremarkable. | 0 |
The tympanic membrane is minimally thickened and there is a myringotomy tube. | 1 |
Mildly enlarged right vestibular aqueduct with mild degree of cochlear dysplasia on the right. | 1 |
Mildly enlarged right vestibular aqueduct with mild degree of cochlear dysplasia on the right. | 1 |
Left myringotomy tube with minimally thickened tympanic membrane. | 1 |
The right internal auditory canal is narrowed in the AP direction. | 1 |
No nerve is visualized entering the cochlea. | 1 |
No nerve is identified entering into the cochlea, suggesting absence or severe hypoplasia of the cochlear nerve. | 1 |
An tympanostomy tube is in place, and there is minimal thickening of the tympanic membrane. | 1 |
The left tympanostomy tube is not located at the tympanic membrane, and lies more laterally in the external auditory canal. | 1 |
The left tympanostomy tube is not located at the tympanic membrane, and lies more laterally in the external auditory canal. | 1 |
Minimal debris is noted in the EAC also. | 1 |
Dislodgment of the left tympanostomy tube, which lies in the external auditory canal. | 1 |
The right cochlear nerve is absent. | 1 |
The facial and vestibular nerves are seen and appear normal. | 0 |
IMPRESSION: Absent right cochlear nerve. | 1 |
Coronal and sagittal oblique reconstructions through the internal auditory canals were perforemed on an independent workstation. | 1 |
Cochlear nerves present bilaterally. | 0 |
No cochlear aperture stenosis. | 0 |
COMPARISON: None FINDINGS: TEMPORAL BONE: The external auditory canals are patent. | 0 |
The vestibulo-cochlear nerves are seen although the right intracanalicular portion appears smaller. | 1 |
The cochlea has abnormal morphology with one turn on the right and zero turns visualized on the left. | 1 |
Both vestibules also have abnormal morphology. | 1 |
The lateral semicircular canals are not fully formed and are abnormally dilated in the proximal portions. | 1 |
Both vestibular aqueducts are markedly enlarged. | 1 |
On the left side, the incus is abnormal with marked hypoplasia of its long process. | 1 |
The stapes appears abnormal in shape. | 1 |
The incus and stapes do not articulate. | 1 |
The incus and stapes do not articulate. | 1 |
The hypoplastic long process is very short and this results in a wide gap between it and the stapes. | 1 |
Abnormal left incus and stapes with lack of incudostapedial articulation. | 1 |
Abnormal left incus and stapes with lack of incudostapedial articulation. | 1 |
While the cochlea has normal appearance, there is cystic dilation of the vestibules and apparent absence of the posterior and lateral semicircular canals. | 1 |
While the cochlea has normal appearance, there is cystic dilation of the vestibules and apparent absence of the posterior and lateral semicircular canals. | 1 |
The superior semicircular canal is dysmorphic and takes an abbreviated course. | 1 |
IMPRESSION: Bilateral cystic dilation of the vestibules with compromise of the semicircular canals. | 1 |
IMPRESSION: Bilateral cystic dilation of the vestibules with compromise of the semicircular canals. | 1 |
COMPARISON: CT of the temporal bones performed immediately prior to the MRI FINDINGS: On the right side, the external auditory canal is patent. | 0 |
There is cystic dilation of the vestibule with compromise of the semicircular canals. | 1 |
There is cystic dilation of the vestibule with compromise of the semicircular canals. | 1 |
Specifically, only a superior semicircular canal is discretely seen and with abbreviated course. | 1 |
Specifically, only a superior semicircular canal is seen and with abbreviated course. | 1 |
There is apparent partial fusion of the head of the malleus and body of the incus. | 1 |
There is apparent partial fusion of the head of the malleus and body of the incus. | 1 |
The cochlea is somewhat small and dysmorphic. | 1 |
The semicircular canals are mildly prominent. | 1 |
The mastoid air cells are poor pneumatized, bilaterally. | 1 |
Slightly small, mildly dysmorphic right cochlea. | 1 |
Apparent partial fusion of the right malleus and incus, as detailed. | 1 |
Apparent partial fusion of the right malleus and incus, as detailed. | 1 |
COMPARISON: None FINDINGS: On the right side, there is a small amount of debris in the external auditory canal, but it is patent. | 1 |
On the left side, the external auditory canal is patent, with minimal debris within. | 0 |
The tympanic membrane is thickened along its entire length. | 1 |
The scutum is sharp and not eroded. | 0 |
Ossicles are normal. | 0 |
The inner auditory canal is patulous bilaterally, normal variant. | 0 |
It The vestibular aqueduct is not enlarged. | 0 |
Bilateral cochlea nerves are present. | 0 |
There is incomplete partitioning between the middle and apical turns of the cochlea and the modiolus is not well visualized. | 1 |
The vestibule is slightly large. | 1 |
There is incomplete partitioning of the middle and apical turns of the cochlea and the modiolus is not well visualized. | 1 |
The vestibule is slightly bulbous. | 1 |
The mastoid air cells are well-pneumatized and clear bilaterally. | 0 |
IMPRESSION: There is enlargement of the vestibular aqueduct, incomplete partitioning of the middle and apical turns of the cochlea, and slightly prominent vestibules. | 1 |
IMPRESSION: There is enlargement of the vestibular aqueduct, incomplete partitioning of the middle and apical turns of the cochlea, and slightly prominent vestibules. | 1 |
IMPRESSION: There is enlargement of the vestibular aqueduct, incomplete partitioning of the middle and apical turns of the cochlea, and slightly prominent vestibules. | 1 |
On the right side, the vestibular aqueduct and endolymphatic sac are enlarged. | 1 |
On the left side, the vestibular aqueduct and endolymphatic sac are enlarged, to a lesser extent than on the right. | 1 |
IMPRESSION: Bilateral enlarged vestibular aqueducts and endolymphatic sacs, right larger than left. | 1 |
The left mastoid air cells and left middle ear cavity are clear. | 0 |
On the right side, the external auditory canal is absent and is ossified. | 1 |
There is dysmorphic features to the middle ear ossicles with adhesion to the bony plate. | 1 |
Left middle ear and mastoid disease. | 1 |
On the right side, the vestibular aqueduct/endolymphatic sac is enlarged. | 1 |
On the left side, the vestibular aqueduct is not enlarged. | 0 |
Enlargement of right-sided vestibular aqueduct/endolymphatic sac. | 1 |
There is fusion of the head of the malleus to the anterior wall of the epitympanum. | 1 |
IMPRESSION: Bilateral fusion of the head of the malleus with the anterior epitympanic wall. | 1 |
COMPARISON: Temporal bone MRI [**Date**] FINDINGS: On the right side, the external auditory canal is patent. | 0 |
FINDINGS: On the right side, the external auditory canal is patent, with a small amount of debris within. | 0 |
On the left side, the external auditory canal is patent, with a small amount of debris within. | 0 |
The cochlear nerve is normal in size. | 0 |
The cochlear aperture is not narrowed. | 0 |
The cochlear aperture is not narrowed.The inner ear structures, including the semicircular canals, vestibule, and cochlea are unremarkable. | 0 |
The cochlear aperture is not narrowed.The inner ear structures, including the semicircular canals, vestibule, and cochlea are unremarkable. | 0 |
Subsets and Splits