Inner ear imaging findings in patients included in this studya
Patient | Age at MRI/CT | Cochlea | Cochlear Nerve | Vestibule | Posterior SCC | Superior SCC | Lateral SCC |
---|---|---|---|---|---|---|---|
A | ?/? | Flattened | Present | Enlarged | Agenesis | N | Large arch, thin |
B | 32 mo/32 mo | Small | Present | Enlarged | Small arch, thick | Large arch, thin | Large arch, thin |
C | 32 mo/32 mo | Small | Present | Enlarged | Small arch, thick | N | Small arch, thick |
D1b | 5 wk/– | Small, flattened | Present | Enlarged | Small arch, thick | Small arch, thick | Small arch, thick |
D2b | 2 mo/2 mo | Small, flattened | Present | Enlarged | N | R: small arch, thick L: N | Small arch, thick |
E | 3 yr/3 yr | Flattened | Present | Enlarged | Agenesis | Agenesis | R: agenesis; L: small arch, thick |
F | 2 mo/– | Small, flattened | Absent | Enlarged | Agenesis | Agenesis | R: agenesis; L: small, thin |
G | 5 yr/5 yr | Flattened | Present | Enlarged | Agenesis | Agenesis | Agenesis |
H | 18 yr/– | Small, flattened | R: present; L: present, thin | Enlarged | Agenesis | Agenesis | Small, thin |
I | 20 mo/20 mo | Small, flattened | Present | Enlarged | Agenesis | Small arch, thick | R: small, thin, incomplete; L: small, thin |
J | 4 yr/4 yr | Small, flattened | R: present; L: absent | Enlarged | Agenesis | Agenesis | Agenesis |
K | 18 mo/18 mo | N | Present | Enlarged | Agenesis | Agenesis | Small, thin |
L | –/16 yr | Small | N/A | R: enlarged; L: N | Small arch, thick | Agenesis | Small arch, thick |
M | 8 days/ 8 days | Small, flattened | Absent | Enlarged | Agenesis | Agenesis | Agenesis |
N | 31 yr/31 yr | Flattened | Present | Enlarged | Agenesis | Small arch, thick | Small arch, thick |
Agenesis or absence (%) | 21 | 67 | 53 | 33 | |||
Defect (%) | 93 | 29 | 100 | 93 | 87 | 100 |
Note:—N indicates normal; N/A, could not be analyzed; R, right; and L, left; –, not performed; ?, age unknown.
↵a When right or left is not specified, the same findings were observed in both sides. In the case of an asymmetric defect, the percentage of absence and/or defects was calculated on the basis of the more severe side.
↵b Brothers.