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High‐resolution manometry and endoscopic ultrasonography are important for diagnosing congenital esophageal stenosis

Congenital esophageal stenosis (CES) is a rare disease caused by congenital structural malformation in the esophageal wall. The incidence of CES is estimated to be 1 in 25 000–50 000 live births. Dysphagia and malnutrition occur frequently in most CES patients during their childhood, whereas few patients have symptoms in adulthood. CES is often misdiagnosed as achalasia and is typically diagnosed postoperatively based on histological examination. In this study, we reported one case of CES that was initially diagnosed as achalasia by esophagogram and was subsequently confirmed to be CES in our center. The characteristic features of the high-resolution manometry (HRM) and endoscopic ultrasonography (EUS) findings were described herein.