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Pasteurella multocida osteomyelitis caused by cat bite

Insights

A cat bite led to a rare bone infection (osteomyelitis) caused by Pasteurella multocida. Prompt surgical intervention and penicillin treatment successfully resolved the infection in a teenage patient.

Area of Science:

  • Infectious Diseases
  • Orthopedic Surgery
  • Microbiology

Background:

  • Cat bites are common and can transmit various pathogens.
  • Osteomyelitis is a serious bone infection that requires prompt diagnosis and treatment.
  • Pasteurella multocida is a common bacterium found in the oral flora of cats and dogs.

Observation:

  • A previously healthy 15-year-old female presented with a cat bite on her left thumb.
  • Despite initial antibiotic treatment with penicillin, she developed osteomyelitis four months post-injury.
  • The necrotic bone culture yielded Pasteurella multocida.

Findings:

  • The osteomyelitis infection exhibited low activity.
  • Surgical debridement of the infected bone was performed.
  • Combined treatment with surgery and penicillin was successful in eradicating the infection.

Implications:

  • This case highlights the potential for delayed and severe bone infections following seemingly minor cat bites.
  • Pasteurella multocida should be considered in the differential diagnosis of infections following animal bites, even after initial antibiotic treatment.
  • Aggressive surgical management combined with appropriate antibiotic therapy is crucial for successful treatment of osteomyelitis in such cases.

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