Size of the persistent foramen of Huschke specified in controls and patients with NEO
| Foramen Size | NEO | Total Control Ears (n = 78) | ||
|---|---|---|---|---|
| Nonaffected Side/Ears (n = 38) | Affected NEO Ears (n = 40) | NEO Total Ears (n = 78) | ||
| Subtle (<0.5 mm) | 4 | 2 | 6 | 6 |
| Mild (0.5–1.0 mm) | 0 | 2 | 2 | 1 |
| Moderate (1.0–1.5 mm) | 1 | 6 | 7 | 0 |
| Extensive (>1.5 mm) | 1 | 10 | 11 | 2 |
| Total | 6 | 20 | 26 | 9 |