Surgical approach to the pterygopalatine fossa-comparison between anterior approach and lateral approach.

The anterior and the lateral approach for resecting an invading tumor in the pterygopalatine fossa region were compared. An anterior approach was applied for resecting a malignancy that originated from the maxillary tuberosity, upper hard plate, and maxillary sinus, and a lateral approach was applied for resecting a malignancy that originated from the upper gingiva and buccal mucosa. The anterior approach was capable of exposing the whole maxilla, although it was difficult to achieve such exposure by the lateral approach. However, the submandibular incision technique used in the Dingman approach was useful for upper neck dissection as well as for exposure of the artery and vein to anastomose them for reconstruction. The anterior approach should be useful for resection of the pterygopalatine fossa concomitant with total maxillectomy. On the other hand, the lateral approach might have an advantage in terms of its cosmetic effects.