This is a case of multiple esophageal diverticula. In the mid esophagus, these are divided into true and false diverticula: true diverticula are secondary to traction from outside the esophagus which creates a pulling force on the wall (for example, in scarring and fibrosis in the mediastinum from old TB); and false diverticula which are secondary to raised intraluminal pressures and are also named pulsion diverticula. This particular case was one of multiple false or pulsion esophageal diverticula.