Abstract
IntroductionPyomyositis, or isolated abscess formation within a skeletal muscle, is a relatively common condition in tropical climates but it is only encountered rarely in temperate zones.Case presentationWe present a case of non-tropical pyomyositis of the gluteal muscle in a 26-year-old, previously healthy man from the United Kingdom, who initially presented with sciatica-like symptoms which began 3 days after a mosquito bite on his nose, which had become infected and discharged pus.ConclusionGluteal pyomyositis involving the sciatic nerve may initially present as radiculopathy. Mosquito bites may have been the source of transient bacteraemia that contributed to muscle suppuration in this patient. This may explain, at least in part, the increased incidence of pyomyositis in healthy individuals living in tropical regions.
Highlights
Pyomyositis, or isolated abscess formation within a skeletal muscle, is a relatively common condition in tropical climates but it is only encountered rarely in temperate zones.Case presentation: We present a case of non-tropical pyomyositis of the gluteal muscle in a 26year-old, previously healthy man from the United Kingdom, who initially presented with sciaticalike symptoms which began 3 days after a mosquito bite on his nose, which had become infected and discharged pus
Pyomyositis in tropical regions often occurs in healthy young people and is thought to result from coincident transient bacteraemia and minor muscle trauma [1]
Non-tropical pyomyositis in healthy individuals is extremely rare, with only a few case reports since its first description in 1971 [1]
Summary
Pyomyositis should be part of the differential diagnosis in any patient with a clinical abnormality arising from compression or compromise of any structures related to skeletal muscles. The presence of even mild systemic illness should increase suspicion of this disease. Non-tropical pyomyositis in a healthy young person is a rare event. The association of this condition with an infected mosquito bite suggests that insect bites may play a causative role in the much more common but demographically distinct disease, tropical pyomyositis
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