MSFinals-5330

A 20-year-old woman is brought to your clinic by her parents due to concerns about her weight loss (her BMI has dropped from 21 to 18.5 in the past year). You have seen her before and have ruled out any physical causes for her weight loss. When you inquire about purging behaviors, such as self-induced vomiting, she becomes defensive, but you notice that her tooth enamel is eroded. She admits to feeling overweight and has been experiencing low mood for several months, finding little pleasure in anything except for when she indulges in too much chocolate and bread. However, she feels even more disgusted with herself afterwards. What is the most appropriate diagnosis for her condition?