Task: Question Answering
Input (English): Question: Question linked to image nº3 58-year-old liver transplant patient with HCV + cirrhosis. After an uncomplicated postoperative period, the patient is referred to his home. Six weeks after the transplant, he was visited in the outpatient clinic, with a low grade of fever, a worsening of the general condition, a GOT level of 60 IU / L (8-40) and a GPT of 65 IU / L (8-50). with a pattern of marked cholestasis (GGT x 10 and FA x 8) with total bilirubin of 1.7 mg / dL (0.3-1). Likewise, a high number of copies of the HCV was appreciated. It was decided to perform a Doppler ultrasound in which a complete arterial thrombosis was reported. In view of these data, a CT scan and a cholangioresonance were requested, the images of which are presented in the figures. For the clinical, analytical and radiological data, indicate which is the most probable diagnosis of the current problem: 
 Options:  <1> Acute rejection mediated by antibodies with associated arterial thrombosis. <2> Early HCV recurrence. <3> Stenosis of the biliary anastomosis. <4> Extensive ischemic injury of intrahepatic bile ducts. <5> Complete thrombosis of intrahepatic portal branches.
Output (English): 4