Progressive supranuclear palsy Progressive supranuclear palsy. T2-weighted axial MRI showing the atrophic dorsal midbrain that gives rise to the "mouse ears" (also "Mickey mouse") appearance. Source: Chapter 39. Degenerative Diseases of the Nervous System, Adams and Victor's Principles of Neurology, 10e Citation: Ropper AH, Samuels MA, Klein JP. Adams and Victor's Principles of Neurology, 10e; 2014 Available at: https://neurology.mhmedical.com/DownloadImage.aspx?image=/data/books/ropp10/ropp10_c039f007.png&sec=50918093&BookID=690&ChapterSecID=50910890&imagename= Accessed: October 07, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved