Abstract
Follicullar cysts occurr frequetry in the region of the mandibular wisdom teeth, maxilla anterior teeth, mandibular premolar teeth, but they arerare in the maxillary sinus. We report a case of a giant follicullar cyst in the maxillary sinus.
The patient was a 13-years-old girl who visited a dental clinic for dental caries treatment. The pulp of the second molar tooth of upper right was extracted. The tooth was vital, but there was a large amount of pus from the root canals.
After about two months, she visited our hospital due to buccal swelling and trisumus.
We extracted the second molar tooth under clinical diagnosis of the odontogenic maxillary sinusitis, but the oroantral fistula at the extraction cavity did not disappear.
After two months, we performed a cavity close operation, A Caldwell-Luc operation and extracted the impacted wisdom tooth which we had recognised by X-ray examination in the left maxillary sinus using general anesthesia.
At that time, we recognised a gigantic follicullar cyst that filled the left maxillary sinus and encleated it.
