Cranial computed tomography findings in bulimia.

Area of Science:

• Neuroimaging
• Psychiatry
• Radiology

Background:

• Eating disorders, including anorexia nervosa and bulimia nervosa, are associated with morphological brain alterations.
• Enlarged external cerebrospinal fluid spaces have been observed in patients with anorexia nervosa, often attributed to underweight.

Purpose of the Study:

• To investigate the presence of enlarged external cerebrospinal fluid spaces in patients with bulimia nervosa using cranial computed tomography (CT).
• To determine if these structural changes in bulimic patients are related to body weight or a history of anorexia nervosa.

Main Methods:

• Cranial computed tomography (CT) scans were performed on 28 patients diagnosed with bulimia nervosa.
• Analysis focused on the size of external cerebrospinal fluid spaces.
• Patient data included body weight and history of anorexia nervosa.

Main Results:

• Over one-third of the studied bulimic patients exhibited enlarged external cerebrospinal fluid spaces.
• These findings were observed irrespective of a past history of anorexia nervosa.
• The bulimic patients studied had near-normal body weight, suggesting underweight is not the sole cause.

Conclusions:

• Enlarged external cerebrospinal fluid spaces are present in a significant portion of bulimia nervosa patients.
• Morphological brain alterations in eating disorders are not solely attributable to underweight.
• Additional factors beyond body weight likely contribute to the observed brain changes in patients with eating disorders.