Intracranial brain parenchymal spread of mucormycosis through olfactory tract: a diffusion-weighted imaging-based concept. (December 2020)

• Record Type: Journal Article
• Authors: Sandron, J.; Hantson, Ph.; Duprez, T.
• Is Part Of: Acta radiologica open. Volume 9:Number 12(2020)
• Publication Date: 2020-12
• Subjects: Magnetic resonance imaging -- diffusion-weighted imaging -- brain -- mucormycosis -- olfactory tract; Radiology -- Periodicals; Diagnostic Imaging -- Periodicals; Radiology; Periodicals; 616.075705
• DOI: 10.1177/2058460120980999
• Languages: English
• ISSNs: 2058-4601

Abstract

Mucormycosis is an opportunistic fungal infection involving among others the paranasal sinuses, nasal fossa and brain parenchyma. Mucor can invade the brain parenchyma by either contiguous spread from the paranasal sinuses or through vascular invasion. We report a case of fatal rhino-cerebral mucormycosis in whom cytotoxic edema at magnetic resonance diffusion-weighted imaging was symmetrically restricted to both neocortical and paleocortical primary areas of olfactory projection at earliest phase of the disease process. Shortly later tissue damage extended into the whole brain. This undescribed observation raised the hypothesis of preferential way of brain invasion by Mucor through the olfactory tract.