Fig. 7
Extra-sinus involvement without bone destruction. Axial CT scan (a) of the paranasal sinuses, obtained using the bone algorithm, reveals opacification of the ethmoid air cells, rarefaction of its trabeculae in addition to subtle swelling along the nasal bridge (thick arrow). No overt erosion of the nasal bones, nasolacrimal duct or the lamina papyracea is seen. Unenhanced axial T1W image (b) confirms the subcutaneous soft tissue (thick arrow) detected on the CT. CE FS axial T1W image (c) demonstrates heterogeneous enhancement of the nasal soft tissue (thick arrow). Post-debridement histopathology analysis (d), using HE staining, confirms branching, aseptate fungal hyphae (thick arrow), consistent with MCR, on the background of necrotic tissue (*)