Skull base osteomyelitis (SBO) is an uncommon but life-threatening condition seen as a complication of otologic, sinonasal, deep face or dental infections in the debilitated, uncontrolled diabetic and immunocompromised patients. The infection spreads from pneumatized spaces or soft tissues to the osseous skull base with the multiple foramina and the traversing neurovascular bundles forming important pathways of disease spread. We present a case series of MR imaging in fungal SBO, which was seen as a complication of acute invasive fungal rhinosinusitis during the COVID-19 pandemic, along with pictorial depiction of skull base anatomy and the various pathways of disease spread.
Keywords: Skull Base osteomyelitis, Fungal osteomyelitis, COVID-19 associated mucormycosis (CAM), Skull base imaging
