Black urine due to cresol intoxication

A 46-year-old woman presented to our hospital with acute-onset vomiting and altered mental status. She had a history of depression with an episode of antipsychotic drug overdose 10 years ago. On arrival, she was comatose and had a strong wood creosote-like smell. Her physical examination revealed miosis, discoloration and blisters on her face without oropharyngeal mucosal erosion. She continuously excreted black urine for a day, …