Cutaneous vasculitis associated with Mycoplasma pneumoniae infection: case report and literature review

Area of Science:

• Pediatric infectious diseases
• Bacteriology
• Immunology

Background:

• Mycoplasma pneumoniae is a common cause of pneumonia in children.
• Extrapulmonary manifestations of M. pneumoniae are diverse, affecting multiple organ systems.
• Vasculitis is a recognized, though less common, extrapulmonary complication.

Observation:

• A 7-year-old male presented with symptoms of vasculitis affecting the skin and retina.
• No pulmonary involvement indicative of pneumonia was detected in this patient.
• The patient was diagnosed with Mycoplasma pneumoniae infection.

Findings:

• The case demonstrates a direct link between M. pneumoniae infection and the development of cutaneous and retinal vasculitis.
• This presentation occurred despite the absence of typical pneumonia symptoms.
• Literature review supports M. pneumoniae as a potential trigger for vasculitis.

Implications:

• This case expands the understanding of M. pneumoniae's potential to cause severe systemic disease beyond respiratory infections.
• Highlights the importance of considering M. pneumoniae in pediatric cases of vasculitis, even without pulmonary signs.
• Suggests a need for increased awareness and diagnostic consideration of M. pneumoniae in unexplained vasculitis cases in children.