Previous studies suggest an association between celiac disease and anorexia nervosa. Research has mainly focused on children and adolescents, and studies among adults are limited. The similar clinical manifestations that characterize both diseases can complicate the diagnosis, and a thorough diagnostic workup is necessary. A focused medical history remains the cornerstone of diagnosis. A delayed diagnosis can lead to a worse quality of life and severe complications. We present the case of a 43-year-old woman with anorexia nervosa who was thereafter diagnosed with celiac disease. The later diagnosis occurred after a long period of persistent diarrhea. Based on the patient's history of autoimmune disease, celiac disease was suspected. Our case highlights the importance of additional work-up in patients with anorexia nervosa who have persistent gastrointestinal symptoms. A further investigation should be based on the medical history, clinical presentation, and laboratory findings.
Keywords: alt:ast ratio; anorexia nervosa; autoimmunity; celiac disease; chronic diarrhea.
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