Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
CASE REPORTS
Pneumococcal Vertebral Osteomyelitis and Psoas Abscess in a Patient with Systemic Lupus Erythematosus Disclosing Positivity of Pneumococcal Urinary Antigen Assay
Masami MatsumuraKiyoaki ItoRika KawamuraHiroshi FujiiRyo InoueKazunori YamadaMasakazu YamagishiMitsuhiro Kawano
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JOURNAL OPEN ACCESS

2011 Volume 50 Issue 20 Pages 2357-2360

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Abstract

A 53-year-old woman with systemic lupus erythematosus presented with a 3-day history of fever and coughing. Diagnosis of pneumococcal bronchitis was made based on symptoms and positivity of pneumococcal urinary antigen test. On day 3, severe low back pain acutely occurred. Pneumococcal vertebral osteomyelitis and psoas abscess was diagnosed 17 days later by yield of penicillin-susceptible S. pneumoniae strain in blood cultures and drainage fluid. Although pneumococcal urinary antigen test is a useful tool for the diagnosis of pneumococcal pneumonia, we should consider the possibility of pneumococcal infections other than pneumonia or overwhelming bacteremia in immunosuppressive patients when urinary antigen test is positive.

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© 2011 by The Japanese Society of Internal Medicine
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