Into the dark of the black oesophagus.

Acute esophageal necrosis (AEN), known as black oesophagus or Gurvit's syndrome, is an extremely rare clinical syndrome. Patients usually present with life-threatening symptoms of upper gastrointestinal haemorrhage (70-90% of cases), as in this case report. Diagnosis of AEN is confirmed based on oesophagogastroduodenoscopy which reveals diffuse or patchy circumferential black necrotic oesophageal mucosa. The presented patient had some comorbidities, such as poorly controlled diabetes mellitus, secondary to chronic pancreatitis, hypertension, after cholecystectomy, addiction to alcohol and tobacco, and taking a small spoon of baking soda three times a day for a few months because of heartburn. Despite the poor prognosis of AEN, with mortality about 32-35%, most patients present with endoscopic improvement in short time - from 7 days to 1 month. Fortunately, the patient did not to have any complications in the course of AEN, and the treatment was effective.