case_images: PMC6051265_01
case_images: Frontal photograph during superior gaze. Limitation of left superior gaze.
case_images: CRIOT2018-4620510.001.jpg
case_images: PMC6051265_01_CRIOT2018-4620510.001.jpg
case_images: fig1
case_images: Examination revealed restriction of superior gaze of the left eye (Figure 1).
case_images: CT scan of the sinuses without contrast, frontal view. 5 mm defect in the posterior medial orbital floor with inferior displacement of the inferior rectus muscle into the defect. Soft tissue band was present from the defect to the remnant of the uncinate process (arrow).
case_images: CRIOT2018-4620510.002.jpg
case_images: PMC6051265_01_CRIOT2018-4620510.002.jpg
case_images: fig2
case_images: A CT scan revealed a 5 mm defect in the posterior medial orbital floor with inferior displacement of the inferior rectus muscle into the defect (Figure 2).
case_images: Endoscopic view of left nasal cavity (a) and orbital floor (b). MT, middle turbinate. Arrow denotes scar band tethering the inferior rectus muscle to the sinus mucosa through the defect on the orbital floor (OF).
case_images: CRIOT2018-4620510.003.jpg
case_images: PMC6051265_01_CRIOT2018-4620510.003.jpg
case_images: fig3
case_images: Intraoperatively, there was a thick scar band tethering the inferior rectus muscle to the sinus mucosa through the defect on the orbital floor (Figure 3).
case_images: Endoscopic view of the left nasal cavity after revision ESS and uncinectomy. Bulging in nasal mucosa when instrumented through the orbital defect (arrow). LP,  lamina papyracea.
case_images: CRIOT2018-4620510.004.jpg
case_images: PMC6051265_01_CRIOT2018-4620510.004.jpg
case_images: fig4
case_images: From the nasal perspective, there was healthy sinonasal mucosa over the defect, but bulging of that mucosa could be seen when instrumented through the orbit (Figure 4).