Primary nonkeratinized epithelial ('conjunctival') orbital cysts
J. R. Boynton, S. S. Searl, A. P. Ferry, S. A. Kaltreider and T. G. Rodenhouse
Department of Surgery, Genesee Hospital, Rochester, NY.
The types of orbital cysts that are most familiar to ophthalmologists are
epidermoid and dermoid cysts, both of which are lined by keratinized
stratified squamous epithelium. We studied six patients who had orbital
cysts lined by nonkeratinized epithelium that resembled normal conjunctiva.
Compared with epidermoid and dermoid cysts, these primary nonkeratinized
cysts tend to cause symptoms later in life, occur preferentially in the
superonasal aspect of the orbit, and are less likely to be associated with
underlying bony changes.
