Aggregatibacter aphrophilus pyogenic liver abscess in an immunocompetent young woman
Kochung Tsui, Chim-Ren Tsai, Li-Chen Lin, Chiou-Chu Yang, Cheng-Hua Huang
Received: June 28, 2007 Accepted: August 18, 2007
Background and purpose:
Aggregatibacter aphrophilus (formerly Haemophilus aphrophilus/paraphrophilus) is a small Gram-negative coccobacillus with fastidious growth requirements. It is a normal commensal of the human oropharynx and upper respiratory tract, and it can infrequently cause invasive human diseases, including bone and joint infections and subacute infective endocarditis. Cases of liver abscess caused by Aggregatibacter aphrophilus have been sparsely recorded in the English-language literature, but have not yet been reported in Taiwan. Here we present a case of Aggregatibacter aphrophilus pyogenic liver abscess in an immunocompetent young woman. She recovered uneventfully after repeated percutaneous abscess aspiration and antibiotic treatment for 5 weeks.