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Coccidioidomycosis

Last Updated: October 1, 2018

Figure 1: A peripherally enhancing lesion along the ventral pons (top row left, top row right) demonstrates central restricted diffusion on DWI (bottom row left) and ADC (bottom row right), a finding more typically seen in infectious abscess than in tumor. When along the surface of the brain as in this case, coccidioidomycosis may mimic leptomeningeal carcinomatosis.

 

Figure 2: Axial (top row left, top row right) and coronal (bottom row left) contrast-enhanced T1 images demonstrate numerous tiny enhancing nodules along the basal cisterns and within and along the cerebellum reflecting the leptomeningeal disease and occasional parenchymal abscesses that are common with coccidiomycosis and can mimic small metastases. Axial FLAIR image (bottom row right) also shows the hyperintense loca...