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A site of jejunal stenosis is accessed using single-balloon endoscopy. (A) A guide wire is inserted across the stenosis. (B) A wire-guided balloon is positioned within the stenosis. (C) Water (or contrast)-filled balloons allow direct visual control during dilatation. (D) The stenosis is sufficiently dilated. A second narrowing, which was subsequently dilated is visible distal to the stenosis.
