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Etiological factors in patients with DNSI (n = 270).
| Etiology | Number of patients | Percentage |
|---|---|---|
| Odontogenic | 65 | 24.07% |
| Tonsillopharyngitis | 36 | 13.33% |
| Furunculosis | 4 | 1.48% |
| Suppurative lymphadenopathy | 58 | 21.49% |
| Tuberculous lymphadenopathy | 28 | 10.37% |
| Salivary gland infections | 36 | 13.33% |
| Infected cysts | 16 | 5.93% |
| Complicated otitis media | 20 | 7.41% |
| Foreign body | 1 | 0.37% |
| Unknown | 6 | 2.22% |
| Total | 270 | 100% |
