thickening of distal esophagusdiffuse esophageal wall thickeningthickening of the oesophagusesophageal thickening causesthickening of the gulletesophageal wall thickeningdistal esophageal wall thickeningthickening of the esophagusesophagus inflammation treatmentdiverticula in the esophagusirritated esophagusesophagus esophagitis