Acute and extremely severe necrotic esophagitis accompanied by hyperglycemic hyperosmolar syndrome in a subject with type 2 diabetes mellitus

Acute necrotic esophagitis is characterized by blacking in the esophageal mucosa and is rarely accompanied by diabetes mellitus, especially under severe hyperglycemic conditions. Here we show a very rare case of a patient who had acute and extremely severe necrotic esophagitis accompanied by hyperglycemic hyperosmolar syndrome.