TABLE 1.

Groups of cases and patients

Study Groups	Specimens (Cases)	Modality	Age in Years (Mean ± SD), Except for Fetuses	Sex Distribution (Males, Females)
Normal adults (pathology cases)	46 (43)	Histology	55.8 ± 22.3a	25 (58.1%), 18 (41.9%)
Normal adults (pathology cases) with available CT scans	16 (9)	Histology and CT	74.6 ± 17.0a	4 (44.4%), 5 (55.6%)
Normal adults (clinical patients)	64 (35)	CT	47.7 ± 16.5b; p = 0.18c	16 (45.7%), 19 (54.3%); p = 0.27
Fetuses (pathology cases)	44 (22)	Histology	Range: 6–38 weeks	n.a.
MD, degenerated ES (pathology cases)	18 (16)	Histology	76.5 ± 20.1a	4 (25.0%), 12 (75.0%)
MD, hypoplastic ES (pathology cases)	14 (9)	Histology	82.9 ± 11.2a	6 (66.7%), 3 (33.3%)

^aAt time of death.

^bAt time of CT scan.

^cP-value of difference between normal adult pathology cases (histology) and normal adult clinical cases (CT).

ES indicates endolymphatic sac; MD, Menière's disease; n.a., data not available.