Abstract
A 36-year-old female patient was referred to our hospital because of high fever and right upper abdominal pain. Laboratory data disclosed increases in WBC count and CRP level. Abdominal computed tomography and ultrasonography revealed multiple liver abscesses in the right lobe of the liver. Percutaneous transhepatic abscess drainage (PTAD) was then performed, and yellow purulent fluid (negative in cytology) was aspirated. Colonoscopy revealed a type 2 tumor in the rectum. It was histologically diagnosed as well-differentiated adenocarcinoma. After these abscesses disappeared, low anterior resection with lymph node dissection was performed in elective surgery. The patient has been free from liver metastasis and liver abscess 2 years after the surgery. In the case of pyogenic liver abscess, complete gastrointestinal examinations should be performed even if the patient is under 40 years of age, because these abscesses can originate in colorectal cancer.