Table 2 Comparison of variables investigated in 36 hydropic ears and 31 non-hydropic ears showing HJB including type 2, type 3 and type 4

Height of the JB (mm), Mean ± SD

9.2 ± 3.4

6.6 ± 2.1

P = 0.000

Anteroposterior diameter of the JB (mm), Mean ± SD

8.2 ± 2.2

P = 0.556

Mediolateral diameter of the JB (mm), Mean ± SD

9.2 ± 2.4

8.8 ± 2.2

P = 0.482

Nonvisualization of the Pöschl plane external aperture of VA (n, %)

9 (25%)

2 (6.5%)

P = 0.041

Presence of diverticulum or dehiscence with vestibular aqueduct (n, %)

11 (30.6%)

8(25.8%%)

P = 0.667

 Type I

25 (69.4%)

27 (87.1%)

P = 0.084

 Type II

6 (16.7%)

4 (12.9%)

P = 0.666

 Type III

5(13.9%)

0 (0%)

P = 0.031