Fig. 4
From: Magnetic resonance imaging features of post-COVID-19 regional and invasive sino-nasal mucormycosis
MRI findings in diabetic male patient, 59 years old, presented mainly with headache and altered mentation, in addition to Lt. eye proptosis, with periocular and eyelids edema, following COVID-19. A Axial T1W, B and Axial T2W images showed bilateral ethmoidal sinusitis (Asterisks), more evident at the Lt. side, with extension of the inflammatory process to the Lt. orbit. C Sagittal T2 WI, showed extension of the inflammatory process through the cribriform plate to the Lt. basi-frontal lobe (White arrows), exhibiting an area of high signal intensities, as well as frontal sinusitis. D Axial post-contrast T1WI and E coronal post-contrast fat-saturated T1WI showed marginally enhanced lesion at the Lt. basi-frontal lobe, which presented restricted diffusion on DW images at b-value 1000 (F), in keeping with cerebral abscess (Red arrows). Coronal post-contrast fat-saturated T1WI showed also extension of the inflammatory process to the Lt. orbit, resulting in mild enlargement of the related Lt. extra-ocular muscles. G Axial T2 SPIR image shows Lt. retro-ocular fat stranding (Yellow arrows)