Meningitis and pneumococcal pyomyositis in a child with intramuscular hemangiomas: an autopsy case report

Cristiano Claudino Oliveira1, Mariângela Esther Alencar Marques1

  • 1Department of Pathology, São Paulo State University, Botucatu School of Medicine Botucatu, São Paulo, Brazil.

Insights

Pneumococcal pyomyositis, a rare bacterial skeletal muscle infection, can occur in children with intramuscular hemangiomas. This association suggests hemangiomas may increase pyomyositis risk, even with limited symptoms.

Area of Science:

  • Pediatric infectious diseases
  • Vascular anomalies
  • Pathology

Background:

  • Pyomyositis is a bacterial skeletal muscle infection, typically caused by Staphylococcus aureus.
  • Streptococcus pneumoniae is a rare cause of pyomyositis.
  • Intramuscular hemangiomas are benign vascular tumors within skeletal muscle.

Observation:

  • An autopsy case of a four-year-old child with multiple congenital intramuscular hemangiomas is presented.
  • The child developed pneumococcal pyomyositis concurrently with meningitis.
  • The clinical presentation was initially limited to the muscular system.

Findings:

  • This case suggests a potential link between intramuscular hemangiomas and the development of pyomyositis.
  • Streptococcus pneumoniae was identified as the causative agent.
  • The co-occurrence of meningitis highlights the potential for systemic spread.

Implications:

  • Patients with intramuscular hemangiomas may be a previously unrecognized risk group for pyomyositis.
  • Respiratory or meningeal co-infections should be considered in patients with suspected pyomyositis, even with localized symptoms.
  • Further research is warranted to explore the pathophysiology and clinical significance of this association.

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