TECHNIQUE:  Routine cone beam computed tomography was performed from the mid orbits through the mandibular base.  Data was acquired as a volume acquisition and reconstructed in multiple planes.  No intravenous contrast was administered. Evaluation of soft tissues is somewhat limited by bone algorithm processing. 

Comparison:  None. 

Findings: 

Airway:   There is a fracture of the frontal sinus with underlying fluid in the frontal sinuses likely representing blood.  The remainder of the airways are clear. The osteomeatal units are widely patent.  There is no evidence of bony sclerosis or erosion. The airway is widely patent. 

Orbits:   Evaluation limited by technique, however, no gross abnormality noted. 

Oral Cavity:  Unremarkable. 

TMJ:  There is no evidence of fracture, dislocation, or significant degenerative change. 

Other:  Soft tissue swelling anterior to the isolated frontal sinus fracture. 

IMPRESSION:  Isolated frontal sinus fracture with overlying soft tissue swelling and fluid in the frontal sinus likely representing blood.  Recommend OMFS or ENT consultation.