Fig. 5
From: Magnetic resonance imaging features of post-COVID-19 regional and invasive sino-nasal mucormycosis
MRI findings in diabetic male patient, 49 years old, presented mainly with Rt. eye proptosis and Rt. premaxillary and periorbital edema, following COVID-19. A Axial T1W, B Axial T2-SPIR and C Axial FLAIR images showed ethmoidal sinusitis (Asterisks), more evident at the Rt. side, with extension of the inflammatory process to the Rt. orbit resulting in proptosis of Rt. eye globe, with posterior globe tenting (White arrows), as well as Rt. periorbital and eyelids edema. D Axial and E Sagittal post-contrast fat-saturated T1WI showed extension of the inflammatory process to the Rt. premaxillary region resulting in soft tissue edema and to the Rt. maxillary and zygomatic bones, showing heterogeneous post-contrast enhancement in keeping with bony invasion (red arrows). The edema and inflammatory process seen extending to the Rt. retro-maxillary region showing mild soft tissue contrast enhancement. F Coronal post-contrast fat-saturated T1WI showing mild enlarged right cavernous sinus with patchy heterogeneous enhancement (yellow arrows), with inflammatory spread to the Rt. infra-temporal fossa region (blue arrows)