A previously healthy 13-year-old boy, 2 weeks prior to the presentation, developed diarrhea (3 watery stools per day non-mucoid/bloody), vomiting, and fever, was diagnosed with acute gastroenteritis and prescribed with probiotics. These symptoms resolved, but after 1 week fever recurred. Moreover, patient developed abdominal pain, located to the right upper quadrant, radiation to the right iliac fossa, variable intensity, and no specific relation to food intake. Pain in the right shoulder was also mentioned. The patient continued to worsen clinically with progressive anorexia, lethargy, and 5 kg weight loss which prompted presentation to the pediatric emergency department. He had no respiratory and urinary symptoms. There was no recent travel history or animal exposure. The patient denied either consumption of undercooked food or unbottled water.On physical examination, he was markedly pale. His abdomen was soft with diffuse mild tenderness, more significant on the right quadrants. There was no rebound tenderness located at the McBurney point. No organomegalies were found. The remaining physical examination was normal.Initial laboratory test results revealed the following: hemoglobin level, 11.2 g/dL; white blood cell count, 27.14 × 10 9 /L (77% neutrophils, 10% lymphocytes); platelet count, 425 × 10 9 /L; C-reactive protein level was 22.19 mg/dL; hepatic enzymes levels were high: aspartate aminotransferase, 94 U/L and alanine aminotransferase, 130 U/L. Gamma-glutamyl transferase level was 161 U/L, alkaline phosphatase level was 324 U/L, and lactate dehydrogenase level was 569 U/L. Coagulation tests were unremarkable. Blood and urine cultures were performed.A chest radiograph showed a small right-sided pleural effusion. Abdominal ultrasound demonstrated a