Table 1

Clinical characteristics of patients with CSF leak. The diagnostic procedures that proved the diagnosis are given in bold

Patient No	Age (y)	Sex	Aetiology of CSF leak	Diagnostic procedures	Observation period (months)	Complications
1	68	Female	Unknown	CT, scintigraphy	2	None
2	8	Female	Post-traumatic	CT, cisternography, intrathecal fluorescein, endoscopic surgery	5	None
3	58	Male	Sinusitis sphenoidalis	CT, surgery	0	Meningitis, exitus
4	73	Male	After craniotomy	CT, surgery	7	Meningitis
5	72	Female	After ventriculotomy	CT	31	None
6	83	Male	Frontobasal meningioma	CT, surgery	1,5	None
7	58	Female	Unknown	CT	32	None
8	57	Male	Post-traumatic	CT, surgery	37	None
9	46	Male	After craniotomy	CT, surgery	38	None
10	19	Male	Frontobasal fracture	CT, MRT, intrathecal fluorescein, endoscopic surgery	40	Recurrence which led to revision surgery, none