[Three cases of severe chronic diarrhea with a rare cause and a simple therapy]. / Drei Fälle von schwerer chronischer Diarrhö mit seltener Ursache und einfacher Therapie.

We report three cases of severe olmesartan-associated chronic diarrhea with weight loss and malassimilation syndrome. Histologically, a sprue-like enteropathy was diagnosed in each case, while serological tests for celiac disease were negative. After stopping the medication, symptoms improved within a few days. Histologically, remission was documented after 3 months. Olmesartan-associated enteropathy is an underestimated entity and an important differential diagnosis in patients with chronic diarrhea.