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Atypical mycobacterial granulomatous epiphyseal osteomyelitis in an immunocompetent child

Shlomo Hayek1, Josephine Issakov, Eli Ezra

  • 1Department of Pediatric Orthopaedics, Dana Children's Hospital, Tel Aviv Medical Center, Israel. shayek@tasmc.health.gov.il

Insights

Atypical mycobacterial osteomyelitis is rare in children, even healthy ones. Polymerase chain reaction (PCR) aids in diagnosing this bone infection, previously missed as granulomatous osteomyelitis.

Area of Science:

  • Pediatric infectious diseases
  • Skeletal infections
  • Mycobacterial research

Background:

  • Osteomyelitis caused by atypical mycobacteria is uncommon in pediatric populations.
  • Predisposing factors like injury, surgery, or immunosuppression are often present.
  • This diagnosis is increasingly considered even in immunocompetent children.

Observation:

  • A case of atypical mycobacterial osteomyelitis in the distal femoral epiphysis of an immunocompetent 10-year-old is presented.
  • The child had no apparent predisposing factors.
  • Diagnosis was challenging due to the rarity and presentation.

Findings:

  • Polymerase chain reaction (PCR) is a valuable tool for identifying atypical mycobacteria in bone infections.
  • PCR enabled diagnosis in a case previously difficult to classify.
  • This technique can differentiate mycobacterial osteomyelitis from granulomatous osteomyelitis.

Implications:

  • The diagnostic utility of PCR for atypical mycobacterial osteomyelitis in children is highlighted.
  • Early consideration of this diagnosis in children, even those without risk factors, is crucial.
  • Advances in molecular diagnostics improve the identification and management of rare pediatric bone infections.

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