A false-positive pneumococcal rapid urinary antigen test in Streptococcus intermedius infection.
Saeko TakahashiTakahiro IshitsukaKaoru NamatameMorio NakamuraPublished in: Respirology case reports (2019)
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.
Keyphrases
- candida albicans
- end stage renal disease
- loop mediated isothermal amplification
- biofilm formation
- newly diagnosed
- endothelial cells
- ejection fraction
- chronic kidney disease
- emergency department
- pulmonary hypertension
- peritoneal dialysis
- prognostic factors
- white matter
- staphylococcus aureus
- cystic fibrosis
- multiple sclerosis
- pseudomonas aeruginosa
- brain injury
- functional connectivity
- cerebral ischemia
- rare case