Fig. 2
From: CSF rhinorrhea: non-contrast CT, contrast-enhanced CT cisternography or combined?
Non-contrast CT in coronal plane (A) shows defect in left cribriform plate of ethmoid (white arrow), CT cisternography in coronal and axial planes (B&C) show: contrast leak through left cribriform plate of ethmoid (black arrow) (B) to the left nasal cavity and left sphenoid sinus (arrowhead and star) (C). Note previous left middle turbinectomy, partial excision of nasal septum, minimal mucosal thickening of both maxillary sinuses and mildly deviated nasal septum to the right side (A and B)