Since the microendoscopic nasal approach to treat the cerebrospinal fluid (CSF) rhinorrhea turned a routine, the need of correct topographic diagnosis was greatly increased. AIM: The aim of this study is to evaluate the efficiency of the computed tomographic cisternography (CTC) and computerized tomography (CT) to locate the CSF fistula according with surgical finds. STUDY DESIGN: Observacional cohort with transversal cut. MATERIAL AND METHOD: Forty-six patients with clinical diagnosis of CSF rhinorrhea were accessed by CT. RESULTS: Thirty-eight of them were also accessed by CTC with Lopamidol. CTC pointed the exact site of fluid escape in 71% of the cases and CT in 52%. CTC helped to find the site of CSF rhinorrhea in 84,15% of the evaluated cases. CONCLUSION: There is not a gold standard method to access the site of CSF rhinorrhea yet. Lopamidol CTC is a worthy method in this purpose.
cerebrospinal fluid fistula; rhinorrhea; computed tomographic cisternography; Lopamidol; computed tomography
