Acute Esophageal Necrosis (AEN), also known as Black Esophagus' is a condition which occurs after a period of ischemia of the esophagus. On initial evaluation one must identify risk factors, diagnosis, and pathogenesis of the acute esophageal necrosis. Risk factors include age, male sex, heart disease, hemodynamic instability, alcohol ingestion, diabetes, renal insufficiency, and hypercoagulable state. The physiologic insult is often multi-factorial, ultimately leading up to ischemic compromise. Discovery of acute esophageal necrosis should be viewed as a poor prognostic factor, and may suggest eminent mortality from the underlying disease process.'
Price, Aaron and Peggy Beeley. "Clinical vignette: Acute esophageal necrosis." (2014). https://digitalrepository.unm.edu/hostpitalmed_pubs/20