Villus atrophy in celiac sprue determines not only a great reduction of the intestinal absorptive surface, but also destroys the underlying microcirculation which depends on the small artery of the villus and the rich network of capillaries. This may result in a significant shortening of the mesenteric vascular bed. We describe three cases of celiac sprue in which duplex Doppler ultrasound flowmetry revealed a high blood flow velocity in the superior mesenteric vein during the acute stage of the disease. A gluten withdrawal diet produced in all cases a restoration of the normal thickness of the mucosa, together with a significant decrease of blood flow velocity in the superior mesenteric vein.
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