Esofagitis necrotizante (esófago negro). Presentación de casos y revisión de la literatura.

Acute necrotizing esophagitis (black esophagus) is a rare pathology that is characterized by partial or total loss of the epithelium, ulceration up to the circumferential slough of all layers of the mucosa and submucosa, frequent involvement of deep muscle layers, and frequent perforations. Its blackish appearance in endoscopic examinations has given it the name of black esophagus. Five illustrative cases, all concordant with descriptions the medical literature, are presented in this study together with a review of the literature, case descriptions and risk and prognosis factors. [ABSTRACT FROM AUTHOR]