Delayed.cerebrospinal fluid rhinorrhea twenty years after septoplasty [Septoplastiden 20 Yi{dotless}l Sonra Gelişen Beyin Omurilik Si{dotless}vi{dotless}si{dotless} Rinoresi]

A 56-year-old man underwent a septoplasty 20 years ago; however,one month prior to hospitalization he got a bad cold and cough,followed by a watery rhinorrhea. computed tomography (ct) scan showed a defect in the right planum sphenoidale. after admission,with the typical clinic symptoms,the history of septoplasty and imageology evidence,the patient was diagnosed as delayed csf rhinorrhea,and accepted a csf rhinorrhea neoplasty with neuronavigation assistance under general anesthesia using an endoscopic approach. intraperatively,we found an old bony defect 3×8mm in size at the planum sphenoidale. after 9 months of follow-up,there was no evidence of rhinorrhea.