Table 2:

Summary of data for internal auditory canal, cochlea, and labyrinth

Patient No./Age (mo/sex)	Side	IAC	Cochlea			Vest	VA	VA angle	Semi-circular canals
Patient No./Age (mo/sex)	Side	IAC	Aperture	Basal	Apical	Vest	VA	VA angle	LSCC	PSCC	SSCC
1/UTI/UTI	R	Normal	Trapped	Normal	Normal	Dys	Present	Reversed	Absent	Absent	Absent
	L	Normal	Trapped	Normal	Normal	Normal	Present	Normal	Absent	Absent	Absent
2/UTI/UTI	R	Normal	UTI	Normal	Hypo	Hypo	UTI	UTI	Absent	Absent	Absent
	L	Normal	UTI	Normal	Hypo	Dys	UTI	UTI	Absent	Absent	Absent
3/4/F	R	Normal	Trapped	Normal	Hypo	Hypo	Present	Reversed	Absent	Absent	Absent
	L	Normal	Trapped	Normal	Hypo	Hypo	Present	Reversed	Absent	Absent	Absent
4	R	Normal	Trapped	Normal	Hypo	Dys	Present	Reversed	Absent	Absent	Absent
	L	Normal	Trapped	Normal	Hypo	Dys	Present	Normal	Absent	Absent	Absent
5/UTI/UTI	R	Normal	Trapped	Normal	Normal	Dys	Large	Normal	Absent	Absent	Absent
	L	Normal	Trapped	Normal dys	Normal	Normal	Present	Normal	Absent	Absent	Absent
6/264/F	R	Normal	Trapped	Modio dys	Hypo	Normal	Present	Normal	Absent	Absent	Absent
	L	Small	Trapped	Modio	Hypo	Normal	Large	Normal	Absent	Absent	Absent
7/65/UTI	R	Normal	UTI	UTI	UTI	UTI	UTI	UTI	UTI	UTI	UTI
	L	Normal	UTI	Enlarged	Enlarged	Dys	UTI	UTI	Absent	Absent	Absent
8/UTI/UTI	R	Normal	UTI	Enlarged	Enlarged	UTI	UTI	UTI	Absent	Absent	Absent
	L	Normal	UTI	Enlarged	Enlarged	UTI	UTI	UTI	Absent	Absent	Absent
9/3/M	R	Small	Trapped	Normal	Hypo	Hypo	Present	Reversed	Absent	Absent	Absent
	L	Small	Trapped	Normal	Hypo	Hypo	Present	Reversed	Absent	Absent	Absent
10/4/M	R	Normal	Trapped	Normal	Hypo	Hypo	Large	Reversed	Absent	Absent	Absent
	L	Normal	Trapped	Normal	Hypo	Hypo	Present	Reversed	Absent	Absent	Absent
11/16/F	R	Normal	Trapped	Normal	Hypo	Hypo	Present	Reversed	Absent	Absent	Absent
	L	Normal	Trapped	Normal	Hypo	Hypo	Present	Reversed	Absent	Absent	Absent
12/60/M	R	Normal	Trapped	Normal	Hypo	Normal	Large	Reversed	Absent	Absent	Absent
	L	Normal	Trapped	Normal	Hypo	Normal	Present	Reversed	Absent	Absent	Absent
13/72/M	R	Normal	Trapped	Normal	Hypo	Normal	Large	Normal	Absent	Absent	Absent
	L	Normal	Trapped	Normal	Hypo	Normal	Present	Normal	Absent	Absent	Absent

Note:—IAC indicates internal auditory canal; Vest, vestibule; VA, vestibular aqueduct; LSCC, lateral semicircular canal; SSCC, superior semicircular canal; PSCC, posterior semicircular canal; UTI, unable to identify; Dys, dysplastic; Modio, modiolus; Hypo, hypoplastic.