Hydrogen peroxide poisoning

A man aged 22 years, with history of depression, presented to the emergency department of Emory University Hospital (Atlanta, GA, USA) in 2019, with complaints of abdominal pain and vomiting. Physical examination was unremarkable. Complete blood count and metabolic panels, including serum lactate, were normal. A contrast-enhanced CT of the abdomen in portal venous phase showed pneumatosis of the distal oesophagus and stomach and portal venous gas (figure, A, B). Mural enhancement was normal (figure, B), without intraperitoneal free air.