Eating disorder not otherwise specified Eating disorder not otherwise specified Eating disorder not otherwise specified (EDNOS) is an eating disorder that is no longer recognized in the most recent version of the "Diagnostic and Statistical Manual of Mental Disorders" (DSM). In 2013, it was replaced by other specified feeding or eating disorder (OSFED) in DSM-5. Eating disorder not otherwise specified is an eating disorder that does not meet the criteria for: anorexia nervosa or bulimia nervosa. Individuals with EDNOS usually fall into one of three groups: sub-threshold symptoms of anorexia or bulimia, mixed features of both disorders, or extremely atypical eating behaviors that are not
Eating disorder scans have been used to detect cases in which a lesion, tumor or other organic condition has been either the sole causative or contributory factor in an eating disorder. "Right frontal intracerebral lesions with their close relationship to the limbic system could be causative for eating disorders, we therefore recommend performing a cranial MRI in all patients with suspected eating disorders" (Trummer M "et al." 2002), "intracranial pathology should also be considered however certain is the diagnosis of early-onset anorexia nervosa. Second, neuroimaging plays an important part in diagnosing early-onset anorexia nervosa, both from a clinical and a research prospective".(O'Brien