Because the sciatic nerve leaves the pelvis through the greater sciatic notch underneath the piriformis muscle, any pathology of the piriformis muscle could result in entrapment of the sciatic nerve; this is widely known as piriformis muscle syndrome. Pyomyositis of the piriformis muscle may be a cause of piriformis muscle syndrome. Piriformis muscle syndrome caused by pyomyositis of the piriformis muscle in pediatric patients is rare. This article describes a case of sciatica caused by pyomyositis of the piriformis muscle in a pediatric patient.
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