Fig. 3
From: CSF rhinorrhea: non-contrast CT, contrast-enhanced CT cisternography or combined?
Non-contrast CT with bone window in coronal plane (A) shows no bone defect, CT cisternography in coronal and sagittal planes (B and C, respectively) show: CSF contrast leak into the right ethmoidal sinus (white arrow). Note mild bilateral mucosal thickening of both maxillary sinuses, left nasal septum spur and mildly deviated nasal septum to the left side