MRI showing a right frontal brain abscesses associated with bacterial endocarditis (S. aureus) in a 55-year-old man. There is characteristic rim enhancement with gadolinium (left panel) and restricted diffusion within the abscess (right panel). Source: Bacterial, Fungal, Spirochetal, and Parasitic Infections of the Nervous System, Adams and Victor's Principles of Neurology, 11e Citation: Ropper AH, Samuels MA, Klein JP, Prasad S. Adams and Victor's Principles of Neurology, 11e; 2015 Available at: https://neurology.mhmedical.com/DownloadImage.aspx?image=/data/books/1477/rop_ch31_f002-1.png&sec=175277122&BookID=1477&ChapterSecID=175276922&imagename= Accessed: December 18, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved