Review orbital anatomy. Discuss different types of orbital wall fractures and soft tissue injuries. Illustrate a series of orbital trauma cases on Computed Tomography (CT). Discuss the possible complications secondary to orbital trauma.

Orbitocranial trauma is very common and warrants urgent imaging assessment(Table 2) due to possible irreversible ocular damage. Radiologists must know orbital anatomy(Table 1, Fig. 1, Fig. 2) and specific imaging findings to provide an accurate diagnosis that will guide the proper management. Orbital fractures may comprise the lateral and medial walls, roof, floor, and apex; with complications dependent on location. Trauma may also affect the soft tissues, and may include injuries such as retrobulbar hematomas and globular rupture. The pattern of orbital trauma will determine...

Orbital fractures Orbital blow-out fracture Orbital blow-out fracture (OBF) is a displaced wall fracture with fragments directed away from the orbital cavity, due toan impact of anobject larger than the orbital aperture. It may be termed as pure (if the orbital rim is spared)(Fig. 3)or impure (if the orbital rim is involved). The most common orbital wall involved in OBF is the orbital floor followed by the medial orbital wall. Orbital blowout fractures can be categorized into opendoor (Fig. 4) and trapdoor blowout fractures. The...

Evaluation of orbitocranial trauma with CT requires knowledge of orbital anatomy and its potential complications. It is important to identify emergent injuries to determine management and avoid irreversible damage.

V. M. Vargas Figueroa; San Juan/US - nothing to disclose E. G. Lugo Millan; San Juan, PR/US - nothing to disclose L. E. Garcia-Irizarry; San Juan, PR/US - nothing to disclose

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