Cerebellar hypoplasia is a neurological condition where the cerebellum is smaller than normal and/or not completely developed. SLIDESHOW Brain Food Pictures: What to Eat to Boost Focus See Slideshow From Brain and Nervous System Resources B-Cell Therapy for Multiple SclerosisFighting MS Fatigue With Physical Activity Have You Noticed Problems With Your Memory? Featured Centers Good and Bad Foods for PsoriasisVideo: Getting Personal on Life With MS Health Solutions From Our Sponsors Shot-Free MS Treatment Your Child and COVID-19 References Jameson, J. Larry, et al. Harrison's Principles of Internal Medicine, 20th Ed. New York: McGraw-Hill Education, 2018.