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Etiology and distribution of sites of CSF leak
| Cribriform plate | Fovea ethmoidalis | Posterior ethmoid | Lateral recess of sphenoid | CLIVAL | Roof Of sphenoid | Cribriform plate + sphenoid sinus | Cribriform plate + posterior ethmoid | |
|---|---|---|---|---|---|---|---|---|
| Spontaneous | 36 | 9 | 5 | 5 | 1 | 1 | 0 | 1 |
| Trauma | 8 | 0 | 1 | 0 | 0 | 1 | 3 | 1 |
| Post Rhino surgery | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Post Neuro surgery | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 |
