A 77 y.o. woman with a history of cholecystectomy was brought to the Emergency Department for low level of consciousness. Physical exam was normal except for hypoperfusion signs and hemodynamic instability. At paraclinic tests, she showed a normal EKG, blood analysis with acute renal failure data. Cranial computerized tomography (CT) and thoracic pulmonary CT angiography had no alteration. After aggressive fluid resuscitation in the first hour of admission, she improved alertness and mean arterial blood pressure, orienting further differential diagnosis towards sepsis. The abdominal CT scan revealed a voluminous diverticulum in the second portion of the duodenum (Fig. 1.), producing an obstructive effect and marked dilation of both extra (Fig. 2) and intrahepatic biliary ducts (Fig. 3) known as Lemmel's syndrome.
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