An 83-year-old man developed the shown clinical picture over a month. Watch the video at Direct link:

Case selected from Dr. Shaibani's Video Atlas of Neuromuscular Diseases, in press, by Oxford University Press. Aziz Shaibani, MD, FACP, FAAN is Director of Nerve & Muscle Center of Texas and Clinical Associate Professor of Medicine at Baylor College of Medicine in Houston, TX. He is also Adjunct Professor of Neurology at Kansas University Medical Center in Kansas City, Kansas.