Acute frontal sinusitis as a late complication after midfacial trauma.

The anatomical relationships of the frontal and nasoethmoid region are reviewed, with particular emphasis on the nasofrontal drainage system. A case report is presented in which obstruction of the nasofrontal duct created a delayed frontal sinusitis in a patient with severe midfacial trauma. A brief review of the different conditions that can appear as periorbital inflammation in the posttraumatic period is given, followed by a brief discussion of the various therapeutic alternatives available to the surgeon when presented with this situation.