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Article in Japanese

Liver abscess caused by Klebsiella pneumoniae serotype K2 in a child


A seven-year-old boy with no significant medical history was admitted to our hospital because of a persistent high fever. Laboratory data showed leucocytosis, elevated aspartate aminotransferase, alanine aminotransferase and C-reactive protein levels. Abdominal computed tomography scan showed a contrasted lesion in the liver. These findings were consistent with a diagnosis of liver abscess. Aspirated fluid from the abscess grew Klebsiella pneumoniae genetic serotype K2. Percutaneous drainage and systemic administration of antibiotics were started, but his high fever continued and he developed lower abdominal pain. On hospital fourth day 4, a subsequent CT scan found a swollen appendix with calcified feces, suggesting acute appendicitis. After an appendectomy, this child's clinical manifestations gradually subsided. It should be noted that K. pneumoniae is one of the pathogens of liver abscess in children.

Department of Pediatrics, Seirei General Hospital

Key words
Received March 23, 2012
Accepted June 15, 2012

24 (3):274─278,2012