Axial images should be scrutinized for:

•Fractures of the anterior and posterior walls of the frontal sinus

•Fracture of the lateral orbital wall

•Fracture of the medial orbital wall (blow-out fracture)

•Ocular lens luxation or rupture of the ocular bulb

•Fracture and dislocation of the nasal bone

•Fractures of the maxillary sinus with hematosinus

•Hematosinus without apparent wall fracture may indicate fracture of the orbital floor

•Fractures of the anterior lateral walls of the maxillary sinus are associated with inward rotational dislocation of the zygoma

•Fracture of the zygomatic arch

•Fracture of the alveolar crest of the maxilla and of the palate bone

•Mandibular fractures (ramus)

Particular to detection in the coronal images are:

•Fractures of the orbital floor

•Fractures of the orbital and ethmoid roofs (frontal skull base)

•Fracture of the hard palate

•Fracture of the pterygoid process

•Mandibular collum or condyle fractures Sagittal CT-scan display (Fig. 2.18):

•Depressed fractures of the anterior and posterior frontal sinus walls

•Displacement of the nasal bone into the ethmoid

•Depressed fracture of the maxilla

•Sella fractures (rare)

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