Abstract
In the treatment of non-invasive fungal sinusitis, the removal of caseous matter (the lesions) is important. Endoscopic surgery has recently become the main method.
However, it is usually difficult to remove the lesions because of their fragility and the difficulty of operation on the maxillary sinus. Therefore we have been performing the operation using a foley catheter (with a balloon at the tip) in the treatment of non-invasive fungal maxillary sinusitis. We insert the catheter into the maxillary sinus from the inferior nasal meatus and inflate the balloon. Then, the lesion is extruded into the nasal cavity from the ostium of the maxillary sinus by the inflated balloon and can then be easily removed.
