title: Aggregatibacter aphrophilus pyogenic liver abscess in an immunocompetent young woman.
abstract: 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.
authors.affiliation: Division of Infectious Diseases, Department of Internal Medicine, Cathay General Hospital, Taipei, Taiwan, ROC. tsuiko@hotmail.com
authors.forename: Kochung
authors.initials: K
authors.lastname: Tsui
authors.forename: Chim-Ren
authors.initials: CR
authors.lastname: Tsai
authors.forename: Li-Chen
authors.initials: LC
authors.lastname: Lin
authors.forename: Chiou-Chu
authors.initials: CC
authors.lastname: Yang
authors.forename: Cheng-Hua
authors.initials: CH
authors.lastname: Huang
mesh_terms: D000328:Adult; D000900:Anti-Bacterial Agents / Q000008:administration & dosage; D005260:Female; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging; D046290:Liver Abscess, Pyogenic / Q000175:diagnosis* / Q000382:microbiology* / Q000473:pathology / Q000628:therapy; D015661:Pasteurellaceae / Q000302:isolation & purification*; D016871:Pasteurellaceae Infections / Q000175:diagnosis* / Q000382:microbiology* / Q000473:pathology / Q000628:therapy; D011860:Radiography, Abdominal; D013396:Suction; D013624:Taiwan; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014463:Ultrasonography
chemical_list: D000900:Anti-Bacterial Agents