We here report two patients with esophageal intramural pseudodiverticulosis (EIPD) that showed typical findings by esophagography and endoscopy. Case 1 was a 70-year-old man, and Case 2 was an 83-year-old man. The initial symptom of both patients was dysphagia. Esophagography revealed pseudodiverticula which were observed as multiple small flask-shaped outpouchings. The opening of the pseudodiverticulum was observed as small, pinhole-like depressions by endoscopic examination. Histologically, a pseudodiverticulum does not extend beyond the proper muscle layer, and is different from the usual esophageal diverticulum. EIPD is important as one of the diseases causing esophageal stenosis, but it is not well known in Japan.
