NORD has published a new Physician Guide to Lipoprotein Lipase Deficiency (LPLD), a rare disorder of triglyceride metabolism. The guide is available free on the NORD Physician Guides website (http://nordphysicianguides.org/lipoprotein-lipase-deficiency-lpld/). John JP Kastelein, MD, PhD, of the University of Amsterdam, served as reviewer for the text. With LPLD, high triglyceride levels are present from infancy or childhood. Symptoms include episodes of severe abdominal pain, hepatosplenomegaly, and eruptive xanthomas.