Chronic osteomyelitislike disease with negative bacterial cultures

Area of Science:

• Pediatric rheumatology
• Infectious diseases
• Skeletal pathology

Background:

• Chronic osteomyelitis-like conditions in children often present diagnostic challenges.
• Negative bacterial cultures suggest non-infectious etiologies for some bone diseases.

Purpose of the Study:

• To characterize pediatric patients with chronic osteomyelitis-like disease and negative bone cultures.
• To compare the clinical courses of chronic recurrent multifocal osteomyelitis (CRMO) and chronic sclerosing osteomyelitis of Garré.

Main Methods:

• Retrospective case series of 14 children over seven years.
• Clinical data, including disease presentation, treatment, and outcomes, were analyzed.
• Immunological assessments were performed in CRMO patients.

Main Results:

• Eight patients diagnosed with CRMO, four with Garré's osteomyelitis, and two with clavicular osteomyelitis.
• CRMO patients generally had a better prognosis with only two active cases at follow-up.
• Garré's osteomyelitis patients remained symptomatic with complications in half the cases.
• Immunological studies in CRMO patients revealed no consistent abnormalities.

Conclusions:

• Negative bone cultures are crucial in diagnosing non-bacterial chronic osteomyelitis-like conditions in children.
• CRMO appears to have a more favorable long-term outcome compared to Garré's osteomyelitis.
• Further research is needed to elucidate the pathogenesis and optimal management of these rare pediatric bone diseases.