Black oesophagus in an adolescent with type 2 diabetes

Abstract

A 13-year-old boy with a past medical history of poorly controlled type 2 diabetes and obesity was admitted with massive haematemesis, melaena, and severe epigastric pain. He had developed non-autoimmune diabetes (glutamate decarboxylase antibodies, islet tyrosine phosphatase 2 antibodies, insulin autoantibodies, and Zinc Transporter 8 antibodies were absent); HbA1c 14·5% at the age of 10 years, having multiple paternal inheritance. Although known to have a bulimic behaviour, his medical history was negative for gastrointestinal disorders and for gastrointestinal toxic drugs or caustic consumption.