To the Editor.—I read with great interest the article by Altenburger et al1 on black esophagus. The authors describe unusual autopsy findings in a 45-year-old woman with a history of cocaine and alcohol abuse and believe that the cause of death was acute necrotizing esophagitis. Black esophagus is a rare disease characterized by circumferentially appearing necrosis of the distal esophagus that extends proximally and may involve the entire length of the organ. Its etiology is usually multifactorial, including ischemic phenomenon, chemical injury to the tissue from gastric contents, and a decrease in effective mucosal defense barriers. Mortality is high because of underlying medical conditions (cardiovascular disease, sepsis, malignancy, and multiorgan failure remain major risk factors for the development of black esophagus and for patient fatality) but is not directly related to the esophageal disease, except in the rare cases of perforation, mediastinitis, and esophageal infection in immunocompromised individuals.2 Chronic cocaine and alcohol abuse will easily trigger a significant cardiac event, such as arrhythmia, a more likely cause of death in this patient, with a rather incidental finding of black esophagus.