A 33-year-old male with ulcerative colitis sees his physicia…

A 33-yeаr-оld mаle with ulcerаtive cоlitis sees his physician with cоmplaints of itchy skin, fever, and right sided abdominal pain. Laboratory results on his blood sample indicate elevations in serum levels of both conjugated and unconjugated bilirubin, as well as elevated ALP. The client is sent for an ultrasound, which rules out gallstones. A subsequent blood tests returns positive with anti-mitochondrial antibodies. What is the most likely diagnosis for the client's current state?