Orbital Roof Ct

Large round bony mass protruding superior and medially from the left anterior cranial fossa floor.

Orbital roof ct.

Orbital process of the frontal bone anterior superior portion lesser wing of the sphenoid postero medial portion inferior wall. Clinical diagnosis is based on meticulous examination of the eye including patient vision and palpation of the orbital aperture. The gold standard for diagnosis of an orbital roof fracture is thin cut coronal ct scanning of the face orbits. It is a thin lamina separating the orbit anteriorly from the frontal sinus and posteriorly from the anterior cranial fossa.

Superior orbital fissure lies between the lesser and the greater wing of sphenoid. While this article will try to list most of the important features of the orbital roof it is by no means comprehensive. Mild surround frontal lobe edema. Although sagittal sections are also helpful in some cases the axial images are less so.

The orbital roof is composed of the orbital plate of the frontal bone with a small contribution from the lesser wing of the sphenoid at the apex figures 3 4 and 3 5. Contrast is not needed. There are several structures and features regarding the orbital roof that we need to remember. Preoperative ct imaging needs to be checked for unusual pneumatization of the orbital roof and possible weak spots.

This frequently causes downward and forward displacement of the globe. Most orbital roof fractures are blow in fractures displacement of the bone is towards the orbit. The orbital roof largely consists of the orbital process of the frontal bone. It is separated posteriorly from roof of orbit by superior orbital fissure and separated from floor of orbit by inferior orbital fissure the lacrimal foramen which transmits the recurrent meningeal branch of the ophthalmic artery is located anterior to the superior orbital fissure along the superior edge of the lateral wall.

The orbital roof separates the orbit from the anterior cranial fossa which houses the frontal lobes of the brain. The ultimate diagnosis is made by computed tomography ct of the face.