Fig. 2
From: Imaging of COVID-19-associated rhino-orbital-cerebral mucormycosis: imaging analysis of 120 patients
Extension of sinonasal disease into the cavernous sinus. Axial T1- and T2-weighted images (A and B) show thickening of the right maxillary sinus wall (white stars) which shows no enhancement (black star) on axial contrast-enhanced fat-saturated T1-weighted image (C). Coronal contrast-enhanced fat-saturated T1-weighted image (D) shows non-enhancing areas within the right cavernous sinus with convex outward margin (straight long arrow), suggestive of cavernous sinus thrombosis. The flow void of the cavernous part of the right internal carotid artery is not seen (straight white arrow shows normal flow void of the internal carotid artery on the left side). The meninges appear thickened and show enhancement (curved arrow) indicating meningitis. Axial diffusion-weighted (E) and apparent diffusion coefficient (F) images show foci of restricted diffusion (straight short arrows) in the right centrum semiovale in the watershed territory, suggesting cerebral infarcts