Rizzotto A., Pagano B., Giardino S. Neri F., Organic or Psychiatric Disease? A Misdiagnosed Superior Mesenteric Artery Syndrome, International Journal of Nutrition, Volume 2, Issue 2, 2016, Pages 1-4, ISSN 2379-7835, https://doi.org/10.14302/issn.2379-7835.ijn-16-1154. (https://oapgroup.org/ijn/article/333) Abstract: Superior mesenteric artery syndrome 1234 is a rare disorder characterised by a compression of the duodenum because of the reduced angle between the aorta and superior mesenteric artery. The disease is clinically characterised by abdominal pain, lack of appetite, vomiting and anorexia; some of these symptoms also characterise eating disorders. We report a case of a young female patient presenting with abdominal pain, loss of appetite and chronic loss of weight which led to misdiagnosis of anorexia nervosa; ultrasound with echo color Doppler methodology has subsequently allowed the correct diagnosis. Keywords: weight gain; anorexia nervosa; superior mesenteric artery syndrome; Ultrasound; echo-Doppler