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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.
Abstract:
Pyomyositis is the bacterial infection of skeletal muscle, usually accompanied by abscesses. The main etiologic agent is Staphylococcus aureus. There are rare cases attributed to Streptococcus pneumoniae. This paper presents an autopsy of a four year old child with multiple congenital intramuscular hemangiomas that developed pneumococcal pyomyositis associated with meningitis. The authors propose the hypothesis that patients with hemangiomas, mainly the intramuscular type, may also represent a risk group for pyomyositis. The possibility of respiratory/meningeal co-infection, might also be considered even if the clinical picture is restricted to the muscular system.
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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