Table 3.
Laterality of different type of middle ear disease (N = 52 pts, 65 ears)
| Diagnosis | Frequency (no. of ears) | Total no. of patients (N) | Right | Left | Bilateral | Associated with other type of disease in contralateral ear |
|---|---|---|---|---|---|---|
| Inactive (squamous) pars flaccida COM (retraction) | 3 | 2 | 1 | – | 1 | – |
| Active (squamous) pars flaccida COM (with cholesteatoma) | 23 | 21 | 12 | 6 | 2 | 1 (on left side) associated with inactive pars tensa squamous COM on right side |
| Total pars flaccida squamous COM (Inactive and Active) | 23 | 13 (56.5%) | 7 (6 + 1) (30.4%) | 3 (13%) | ||
| Inactive (squamous) pars tensa COM (retraction) | 21 | 13 | 4 | 4 | 5 | – |
| Active (squamous) pars tensa COM (with cholesteatoma) | 18 | 16 | 3 | 9 | 2 | 2 (on right side) associated with inactive squamous pars tensa COM on left side |
| Total pars tensa squamous COM (inactive and active) | 29 | 9 (7 + 2) (31%) | 13 (44.8%) | 7 (24.2%) | ||
| Total | 65 | 52 | 22 | 20 | 10 |