Endoscopic Endonasal Transinfraturbinate Approach With Nasoseptal Window for Removal of the Pterygopalatine Fossa Tumor.

Recent advances in endoscopic intranasal technology have allowed for a safe approach to the pterygopalatine fossa lesion. However, we consider that there is still scope of improvement to approach a broader area with better operability and minimal invasiveness. A 51-year-old man underwent endoscopic endonasal surgery due to the recurrence of chordoma at the left pterygopalatine fossa. To access the lower and lateral part of the pterygopalatine fossa, we performed endoscopic endonasal transmaxillary removal via an inferior turbinate incision. During surgery, a wide operative field and good operability could be secured by inserting an endoscope from the right nostril through a window of the nasal septum. Subtotal removal of the tumor was achieved without any complication during the surgery. Endoscopic endonasal transinfraturbinate approach with nasoseptal window was effective in the removal of the pterygopalatine fossa tumor because it is less invasive and provides a good surgical view with better operability.