upper quadrant pain and progressive dyspnea for 2 days. He had history of chronic obstructive pulmonary disease and chronic kidney disease. On admission, he was febrile and had sinus tachycardia. Laboratory findings showed an elevated white blood cell count of 18.01 × 109/L with 92.1% neutrophils. Liver function tests revealed normal alanine aminotransferase (14 U/L [3–37 U/L]), normal total bi...