Fig. 3

Patient who had left MSC with ethmoid sinus invasion and ophthalmic artery involvement of MSC. (a, b) Coronal section of T2 weighted image and fat-suppressed contrast enhanced T1weighted image, ethmoid sinus invasion could be recognized on each image (black arrow). (c) Lateral view of the internal carotid angiogram showed MSC enhancement (white arrow) from the peripheral branch of the ophthalmic artery