• John Teijido, Kelly Tillotson, and J Marc Liu.
• Department of Emergency Medicine, Medical College of Wisconsin Affiliated Hospitals, Milwaukee, Wisconsin.
• J Emerg Med. 2020 Feb 1; 58 (2): e71-e73.

BackgroundEpstein-Barr virus (EBV) is a herpesvirus spread by intimate contact. It is known to cause infectious mononucleosis. Complications, including hematologic pathology and splenic rupture, are uncommon. This report is a case of EBV-induced autoimmune hemolytic anemia and biliary stasis.Case ReportAn 18-year-old man presented to the emergency department with abdominal pain, nausea, vomiting, and jaundice. He did not have risk factors for liver injury or hepatitis. His vital signs were notable for a fever. On examination, he was obviously jaundiced, but not in distress. Laboratory evaluation showed hemolytic anemia and biliary stasis. Ultimately, his inpatient workup yielded positive EBV serology and a positive direct agglutinin test with cold agglutinins. He made a full recovery with supportive care. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: EBV is a widely disseminated herpesvirus. Infectious mononucleosis is a common presentation of acute infection, and treatment of EBV-related diseases are largely supportive. Complications, such as splenic rupture and hematologic pathology, are uncommon. Biliary stasis and autoimmune hemolytic anemia in the form of cold agglutinin disease secondary to EBV is rare, and typically resolves with supportive care and cold avoidance. More advanced treatment methods are available in the setting of severe hemolysis. Elevated transaminases, direct hyperbilirubinemia, or evidence of hemolytic anemia in the setting of a nonspecific viral syndrome should raise suspicion for EBV infection. Rapid recognition can lead to more prompt prevention and treatment of other EBV-related complications.Copyright © 2019 Elsevier Inc. All rights reserved.

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