"This review of published case reports challenges the traditional view that hypothalamic disturbance underlies eating disorders. Although hypothalamic lesions are the most commonly reported neural causes of anorexia-like syndrome, most of them lack the typical psychopathology. Of the eight cases with characteristic psychopathological presentation and suggestive evidence for a causal association, four had frontal and temporal cortical lesions, two brain stem tumours, one hypothalamic tumour, and one hydrocephalus. Implication of frontotemporal circuits is consistent with functional neuroimaging research in eating disorders and with benign changes in eating, such as the gourmand syndrome.49 Therefore, we conclude that evidence favours cortical mechanisms in the genesis of eating disorders over hypothalamic ones. An association of disordered eating with epilepsy was reported in 12 cases. In six of these, remission after a surgical removal of an epileptogenic focus or anticonvulsant treatment suggests that eating disorder may be actively maintained by an epileptogenic focus rather than being a deficit syndrome due to missing normal brain tissue. In five of the reviewed cases, disturbed eating occurred alongside obsessive compulsive psychopathology. This finding parallels the comorbidity and familial cooccurrence of eating disorders and obsessive compulsive disorder50 51 and suggests a common or overlapping neural substrate of the two."