Abstract
A 16-year-old woman was referred and admitted to our hospital with a diagnosis of anorexia nervosa. At the first visit, the patient was underweight with a BMI of 13 and had hypoglycemia. At the same time, although obvious hallucination and thinking disorder were not observed, food refusal and fear of fatness were noticed. During the course of hospitalization, the patient's minute mental symptoms such as dysesthesis, paresthesis and depersonalization became obvious along with normalization of the eating behavior. Based on these observations, the patient was diagnosed as having "at risk mental state(ARMS)" and aripiprazole was administered. Along with the treatment for eating disorder, psychological education to the family members on ARMS and guidance of familial support were conducted, and improvements of mental symptoms, eating behavior and family relationship were obtained. We reconfirmed the importance of paying attention to the possibility of coexistence of eating disorder and ARMS, and of early therapeutic intervention.
