Three minimally invasive procedures for removing lesions in the maxillary sinus.

We describe here 3 minimally invasive procedures for removing lesions from the maxillary sinus using an ultrathin endoscope, microscope, and otoscope.Preoperatively, a lesion in the maxillary sinus was identified by radiographic examination. Then the access hole position and advance direction of the endoscope and forceps were planned. Under local anesthesia, a small incision on the buccal mucosa was made in the planned position. The anterior bony wall of the sinus was exposed subperiosteally, and a small access hole for the insertion of an endoscope was made in the planned position and angled with a fissure bur. After identification of the lesion endoscopically, microscopically, or otoscopically, a forceps was inserted into the sinus cavity through the hole, and the lesion was seized and withdrawn from the sinus.The surgical procedures are suggested to be reliable, easy, and minimally invasive that provide a limited incision and bone removal and respect the integrity of the sinus.