A false‐positive pneumococcal rapid urinary antigen test in Streptococcus intermedius infection

An 83‐year‐old woman was admitted with empyema. Pneumococcal rapid urinary antigen testing on admission showed a positive result, but culture of pleural effusion yielded only Streptococcus intermedius. S. intermedius is a member of the anginosus group and a component of the regular flora of the oral...

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Main Authors: Saeko Takahashi, Takahiro Ishitsuka, Kaoru Namatame, Morio Nakamura
Format: Article
Language:English
Published: Wiley 2019-10-01
Series:Respirology Case Reports
Subjects:
Online Access:https://doi.org/10.1002/rcr2.466
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author Saeko Takahashi
Takahiro Ishitsuka
Kaoru Namatame
Morio Nakamura
author_facet Saeko Takahashi
Takahiro Ishitsuka
Kaoru Namatame
Morio Nakamura
author_sort Saeko Takahashi
collection DOAJ
description An 83‐year‐old woman was admitted with empyema. Pneumococcal rapid urinary antigen testing on admission showed a positive result, but culture of pleural effusion yielded only Streptococcus intermedius. S. intermedius is a member of the anginosus group and a component of the regular flora of the oral cavity and gastrointestinal tract. As a human pathogen, this species has gained notoriety for abscess formation in the liver and brain but has also been reported recently as a major agent causing pulmonary abscesses or empyema, and the number of affected patients is increasing with the aging of society. We present the first case of a false‐positive pneumococcal rapid urinary antigen test in empyema caused by S. intermedius.
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spelling doaj.art-234883e273a1488e8824fcc137574d532022-12-21T18:38:56ZengWileyRespirology Case Reports2051-33802019-10-0177n/an/a10.1002/rcr2.466A false‐positive pneumococcal rapid urinary antigen test in Streptococcus intermedius infectionSaeko Takahashi0Takahiro Ishitsuka1Kaoru Namatame2Morio Nakamura3Department of Pulmonary Medicine Tokyo Saiseikai Central Hospital Tokyo JapanDepartment of General Internal Medicine Tokyo Saiseikai Central Hospital Tokyo JapanDepartment of General Internal Medicine Tokyo Saiseikai Central Hospital Tokyo JapanDepartment of Pulmonary Medicine Tokyo Saiseikai Central Hospital Tokyo JapanAn 83‐year‐old woman was admitted with empyema. Pneumococcal rapid urinary antigen testing on admission showed a positive result, but culture of pleural effusion yielded only Streptococcus intermedius. S. intermedius is a member of the anginosus group and a component of the regular flora of the oral cavity and gastrointestinal tract. As a human pathogen, this species has gained notoriety for abscess formation in the liver and brain but has also been reported recently as a major agent causing pulmonary abscesses or empyema, and the number of affected patients is increasing with the aging of society. We present the first case of a false‐positive pneumococcal rapid urinary antigen test in empyema caused by S. intermedius.https://doi.org/10.1002/rcr2.466Empyemapneumococcal rapid urinary antigen testStreptococcus intermedius
spellingShingle Saeko Takahashi
Takahiro Ishitsuka
Kaoru Namatame
Morio Nakamura
A false‐positive pneumococcal rapid urinary antigen test in Streptococcus intermedius infection
Respirology Case Reports
Empyema
pneumococcal rapid urinary antigen test
Streptococcus intermedius
title A false‐positive pneumococcal rapid urinary antigen test in Streptococcus intermedius infection
title_full A false‐positive pneumococcal rapid urinary antigen test in Streptococcus intermedius infection
title_fullStr A false‐positive pneumococcal rapid urinary antigen test in Streptococcus intermedius infection
title_full_unstemmed A false‐positive pneumococcal rapid urinary antigen test in Streptococcus intermedius infection
title_short A false‐positive pneumococcal rapid urinary antigen test in Streptococcus intermedius infection
title_sort false positive pneumococcal rapid urinary antigen test in streptococcus intermedius infection
topic Empyema
pneumococcal rapid urinary antigen test
Streptococcus intermedius
url https://doi.org/10.1002/rcr2.466
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