A 57-year-old female patient complains of intense pain in the right hypochondrium irradiating to the right supraclavicular region. Skin and sclerae are icteric. There is tension and tenderness in the right hypochondrium on palpation. Body temperature is 38,8°C. Blood test results: WBC- 11,2 × 109/l, total bilirubin - 112 mmol/l (conjugated - 86 mmol/l, unconjugated - 26 mmol/l). What is the most likely diagnosis?