The superior orbital fissure is a foramen in the skull, although strictly it is more of a cleft, lying between the lesser and greater wings of the sphenoid bone. 1  1 Structures passing through. number of important anatomical structures pass through the fissure, and these can be damaged in orbital trauma, particularly blowout fractures through the floor of the orbit into the maxillary sinus. These structures are:
To research the causes of Dermoid cyst, consider researching the causes of these these diseases that may be similar, or associated with Dermoid cyst: 1  Squamous cell carcinoma. 2  Encephalocele. 3  Sebaceous cyst.
Most cysts form because the teeth they are associated with have died (infection or trauma). Others form because of a mistake in the way the teeth have developed (including being unable to grow into the mouth properly). Rarely, dental cysts are part of a genetic syndrome that has other symptoms (eg Gorlin's syndrome). Your dentist or oral and maxillofacial surgeon will explain to you more about the cause of your cyst.