title: Mycotic Aneurysm Caused by Streptococcus constellatus subsp. constellatus.
abstract: An infected mycotic aneurysm due to Streptococcus constellatus subsp. constellatus has not previously been reported. We report on this condition in an 87-year-old woman who had aggravating abdominal pain and a large fusiform aneurysm over the thoracic-abdominal aorta with mural thrombus. Isolates from two sets of blood cultures and the debrided tissue were identified as S. constellatus subsp. constellatus by their biochemical reaction profiles, compatible 16S rRNA gene sequencing results, and sequencing results for the partial groESL gene and the 16S-23S intergenic spacer region.
authors.affiliation: Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan.
authors.forename: Wen-Chu
authors.initials: WC
authors.lastname: Chiang
authors.forename: Jui-Chang
authors.initials: JC
authors.lastname: Tsai
authors.forename: Shey-Ying
authors.initials: SY
authors.lastname: Chen
authors.forename: Chiung-Yuan
authors.initials: CY
authors.lastname: Hsu
authors.forename: Chen-Tu
authors.initials: CT
authors.lastname: Wu
authors.forename: Lee-Jene
authors.initials: LJ
authors.lastname: Teng
authors.forename: Po-Ren
authors.initials: PR
authors.lastname: Hsueh
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000785:Aneurysm, Infected / Q000382:microbiology*; D017544:Aortic Aneurysm, Abdominal / Q000382:microbiology; D017545:Aortic Aneurysm, Thoracic / Q000382:microbiology; D001426:Bacterial Proteins / Q000235:genetics; D018833:Chaperonins / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000235:genetics; D005260:Female; D006801:Humans; D016133:Polymerase Chain Reaction; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D013290:Streptococcal Infections / Q000382:microbiology*; D034365:Streptococcus constellatus / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*
chemical_list: D001426:Bacterial Proteins; D021903:DNA, Ribosomal Spacer; C097970:GroESL protein, Bacteria; D012336:RNA, Ribosomal, 16S; D018833:Chaperonins