Chromosome 4

HD. Brain section from a patient with Huntington's disease showing dilatation of ventricles and atrophy of caudate nucleus IMAGE CREDIT: Kevin Roth and Robert Schmidt, Washington University, St. Louis, MO, USA EVC. Ellis-van Creveld syndrome (six-fingered dwarfism) has increased prevalence in the Old Order Amish community IMAGE CREDIT: Clement D. Erhardt, Jr., Baltimore, MD, USA