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. 2021 Nov 3;51(1):112–120. doi: 10.1067/j.cpradiol.2021.09.004

FIG 8.

FIG 8:

Patterns of vascular invasion in 2 patients with COVID-19 associated Rhino-Orbital-Cerebral Mucormycosis. Patient 1: Postcontrast axial T1FS image (A) shows right-sided proptosis with non enhancement of right sclera and extra-ocular muscles suggesting extra-nasal tissue infarction. Soft tissue infiltration of the right orbital apex and right cavernous sinus is evident (white arrow) with narrowing of right ICA flow void. Axial 3D-TOF MR angiography MIP images show absence of flow related enhancement in right ophthalmic artery (B, arrow-head) and third segment of right internal maxillary artery (C, dashed arrow). Patient 2: Post-contrast axial T1FS image (D) shows left-sided proptosis with enhancing soft tissue in retro-orbital fat, infiltration of ipsilateral cavernous sinus and cavernous segment of ICA (arrow). Axial 3D-TOF MR angiography MIP images (E & F) show absence of flow related signal in left ICA.