Misdiagnosed Celiac Disease:
The advancement of technologies including the availability of sensitive and specific serological screenings and endoscopic intestinal examinations has led to increased awareness and recognition of silent epidemic celiac disease in patients with irritable bowel syndrome in the last two decades. The objective of this case report is to describe the importance of routine screening of celiac disease in patients with non-specific (common) intestinal symptoms, particularly those with irritable bowel syndrome. The author reported the clinical progress of a 44-year-old Saudi male patient presented with non-specific intestinal symptoms initially misdiagnosed with irritable bowel syndrome. The investigations, including serological testing and endoscopic duodenal biopsy, revealed that the patient had celiac disease. After a course of gluten-free diet, his intestinal symptoms significantly improved. This case report emphasizes the importance of thorough investigations for patients with irritable bowel syndrome to exclude celiac disease.