Management of Anterior Skull Base Defect Depending on Its Size and Location

Table 2

Etiology of CSF leaks.

Etiology	Number of cases (%)
Spontaneous	30 (48.4)
Traumatic	15 (24.2)
Iatrogenic/postoperative (FESS)	5 (8.1)
Benign tumor (osteoma, mucocele, and inverted papilloma)	5 (8.1)
Meningocele	3 (4.8)
Iatrogenic/postoperative (rhinoseptoplasty)	2 (3.2)
Congenital (meningoencephalocele of Sternberg’s canal)	2 (3.2)