Esophageal Ring, Lower Watchlist (log in to enable) Retrieved 2019-09-22 Source Omim Trials — Genes — Drugs — Interested in hearing about new therapies? Registered! Longstreth (1982) observed 68-year-old identical twins and a 52-year-old woman and her 20-year-old son who had dysphagia due to lower esophageal ring. All the affected individuals also had hiatal hernia (142400).