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Pneumococcal psoas abscess.

T Nakazato1, M Kitahara, K Watanabe

  • 1Department of Internal Medicine, Saiseikai Central Hospital, Tokyo.

Internal Medicine (Tokyo, Japan)
|March 3, 1999
PubMed
Summary
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A rare case of Streptococcus pneumoniae psoas abscess in a 47-year-old woman was successfully treated with drainage and antibiotics. This study highlights the importance of considering pneumococcal infection in psoas abscess diagnosis.

Area of Science:

  • Infectious Diseases
  • Surgical Pathology
  • Medical Imaging

Background:

  • Psoas muscle abscesses are uncommon, often presenting with non-specific symptoms like low back pain.
  • Computed tomography (CT) is crucial for diagnosing psoas abscesses.
  • Streptococcus pneumoniae is a rare causative agent for psoas abscesses.

Observation:

  • A 47-year-old woman presented with severe low back pain.
  • CT scan revealed a left-sided psoas muscle abscess.
  • Ultrasound-guided drainage was performed on the first hospital day.

Findings:

  • Pus analysis identified Streptococcus pneumoniae as the causative pathogen.
  • The patient underwent open drainage and antibiotic treatment.
  • Clinical improvement was observed following treatment.

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Implications:

  • This case adds to the limited literature on pneumococcal psoas abscesses (only 10 reported previously).
  • Early diagnosis and appropriate management, including targeted antibiotics and surgical drainage, are essential for favorable outcomes.
  • Highlights the need to consider less common pathogens in psoas abscesses, even in immunocompetent individuals.