case_images: PMC5564091_01
case_images: The lesion appearing hyperintense on T2-weighted RMI.
case_images: CRIOT2017-7567838.001.jpg
case_images: PMC5564091_01_CRIOT2017-7567838.001.jpg
case_images: fig1
case_images: T1 and a hyperintense lesion on T2 weighted images. There was no suppressed fat on STIR sequence (Figure 1).
case_images: T1-weighted RMI in sagittal cut showing expansive cystic mass occupying the sphenoid sinus and posterior ethmoid. Observe the integrity of pituitary gland (white arrow).
case_images: CRIOT2017-7567838.002.jpg
case_images: PMC5564091_01_CRIOT2017-7567838.002.jpg
case_images: fig2
case_images: In sagittal view the pituitary gland was intact and there was no sellar invasion, excluding pituitary adenoma with sphenoidal sinus extension (Figure 2).
case_images: Removing of a solid lesion occupying the clival recess.
case_images: CRIOT2017-7567838.003.jpg
case_images: PMC5564091_01_CRIOT2017-7567838.003.jpg
case_images: fig3
case_images: It was very thick and adherent to the walls of sphenoidal mucosa, covering an osseous erosion area, especially in opticocarotid recess region (Figure 3).
case_images: Sphenoidal sinus opened and demucosalized. Suction cannula is in clival recess. Black asterisks show lateral opticocarotid recess between carotid artery (downward) and optic nerve (upward). Observe the short intercarotid distance and the absence of prominence of the sellar floor.
case_images: CRIOT2017-7567838.004.jpg
case_images: PMC5564091_01_CRIOT2017-7567838.004.jpg
case_images: fig4
case_images: The preoperative RMI shows a large intercarotid space; however, intraoperative distance between both carotid arteries was short (Figure 4).
case_images: Postoperative CT scan showing the sphenoidotomy, the posterior ethmoidectomy, and the absence of lesion.
case_images: CRIOT2017-7567838.005.jpg
case_images: PMC5564091_01_CRIOT2017-7567838.005.jpg
case_images: fig5
case_images: He presented a complete improvement of the algic picture and postoperative CT scans showed an air-filled cavity replacing the lesion in the sphenoid body with no residual soft-tissue lesion (Figure 5).