Pyogenic liver abscess refers to pus-filled pocket within liver. The causes of pyogenic liver abscess are: - appendicitis - cholangitis - bacteremia - diverticulitis - perforated bowel - trauma to liver In severe cases, pyogenic liver abscess can cause sepsis. Reference: https://www.mountsinai.org/health-library/diseases-conditions/pyogenic-liver-abscess Image via: https://basicmedicalkey.com/pyogenic-abscess-2/