Surgical ciliated cyst of the maxilla is a rare complication following surgical procedures or trauma
involving the maxillary sinus. It can occur at any time after any procedures or trauma involving the maxillary
sinus even though many years have lapsed. Clinically it may mimic other cysts of the maxillary sinus
therefore a thorough history taking is necessary for diagnosis. Treatment is usually by enucleation or
marsupialisation. This report highlighted a case of surgical ciliated cyst involving the right maxillary sinus
probably secondary to maxillary sinus procedures, which were performed 30 years prior to presentation.