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Abstract
Laboratory data revealed a total white blood cell count of 6.42 × 109/L with 37% lymphocytes and 16%"atypical" lymphocytes [Figure 1]a and [Figure 1]b on the blood film. A heterophile antibody test yielded a positive result the day after admission, and a clinical diagnosis of infectious mononucleosis was confirmed 7 days later with positive Epstein-Barr virus (EBV) serology-positive viral capsid antigen immunoglobulin M, negative viral capsid antigen immunoglobulin G (IgG), and EBV nuclear antigen IgG. Computerized tomography (CT) scan of the chest and abdomen revealed findings consistent with pneumonia and acute pancreatitis, namely multiple patches in both zones of the lung [Figure 1]e and pancreatic edema [Figure 1]c. Blood culture and a sputum culture were taken. A recent study integrated information on acute pancreatitis from 14 patients with primary acute EBV infection and suggested that the complication deserved attention, especially in cases with severe abdominal pain. Testing for pancreatic enzymes...