Fig. 5From: Facial fractures: classification and highlights for a useful reportComplications involving drainage canals. a Coronal CT image shows frontal recess involvement by fracture (black circle). b Coronal and (c) axial CT images at the level of the maxillary sinus showing extension of naso-orbito-ethmoidal complex fractures through both nasolacrimal ducts on the right side (circled in white)Back to article page