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Streptococcus bovis prosthetic valve endocarditis associated with silent colonic carcinoma

Fatehi E Elzein1, M Yasin Akhtar2, Hatim Khairallah2

  • 1Department of Medicine, Prince Sultan Military Medical City, Riyadh, Saudi Arabia.

BMJ Case Reports
|May 31, 2017
PubMed

Insights

Streptococcus bovis endocarditis in a patient with a bioprosthetic mitral valve was successfully treated with ceftriaxone. The case highlights the crucial link between S. bovis and colon cancer, emphasizing the need for physician awareness for early diagnosis.

Area of Science:

  • Infectious Diseases
  • Cardiology
  • Gastroenterology

Background:

  • The association between Streptococcus bovis endocarditis and colonic neoplasms is a recognized phenomenon.
  • Despite established knowledge, a significant gap in physician awareness persists regarding this association.

Observation:

  • A 75-year-old female presented with fever and was diagnosed with Streptococcus bovis endocarditis on a bioprosthetic mitral valve.
  • Blood cultures cleared with ceftriaxone, but a screening colonoscopy revealed an invasive colonic adenocarcinoma, despite the absence of gastrointestinal symptoms.

Findings:

  • The case demonstrates a successful treatment of S. bovis endocarditis with ceftriaxone.
  • The concurrent diagnosis of colon cancer underscores the critical need for vigilance in patients with S. bovis endocarditis.

Implications:

  • Increased physician awareness of the S. bovis-colon cancer link can lead to earlier diagnosis and improved patient outcomes.
  • This case report emphasizes the importance of screening for colonic pathology in patients with S. bovis endocarditis, particularly in regions with lower reported incidence.

Keywords:
cardiovascular medicinecolon cancerinfectionsvalvar diseases

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