Orbital Roof Ct

Orbital process of the frontal bone orbital process of the zygomatic bone.

Orbital roof ct.

Orbital process of the frontal bone anterior superior portion lesser wing of the sphenoid postero medial portion inferior wall. Mild surround frontal lobe edema. Superior orbital fissure lies between the lesser and the greater wing of sphenoid. Clinical diagnosis is based on meticulous examination of the eye including patient vision and palpation of the orbital aperture.

Laterally the lacrimal gland fossa is located medial to the zygomatic process and enlarges the post rim concavity. Large round bony mass protruding superior and medially from the left anterior cranial fossa floor. 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.

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. Most orbital roof fractures are blow in fractures displacement of the bone is towards the orbit. While this article will try to list most of the important features of the orbital roof it is by no means comprehensive. There are several structures and features regarding the orbital roof that we need to remember.

The orbital roof separates the orbit from the anterior cranial fossa which houses the frontal lobes of the brain. 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. Preoperative ct imaging needs to be checked for unusual pneumatization of the orbital roof and possible weak spots. Although sagittal sections are also helpful in some cases the axial images are less so.

This fissure allows the passage to. Contrast is not needed.