PyomyositisM60.0
Synonym(s)
Myositis tropicans; tropical pyomyositis
DefinitionThis section has been translated automatically.
Acute inflammation of the skeletal muscles, occurring mainly in the tropics and subtropics.
PathogenThis section has been translated automatically.
- Staphylococcus aureus, part MRSA.
- Streptococcus pyogenes.
- Mycobacterium tuberculosis.
- Parasites like trypanosomes and filariae.
Occurrence/EpidemiologyThis section has been translated automatically.
Preferably occurring in tropics and subtropics.
EtiopathogenesisThis section has been translated automatically.
- Mainly injuries of the skin lead to the invasion of germs into the deeper skin layers up to the muscle layer.
- Viral or parasitic infection as well as malnutrition can predispose a pyomyositis.
Abscess formation up to muscle destruction.
ManifestationThis section has been translated automatically.
Mainly occurring in children and young, male adults.
LocalizationThis section has been translated automatically.
Mainly gluteal muscles and M. quadriceps are affected. Furthermore, M. erector spinae and the shoulder girdle muscles can be affected.
Clinical featuresThis section has been translated automatically.
Rough, red, occasionally overheated or fluctuating, circumscribed indurations or soft tissue swellings that have reached significantly deeper tissue layers. Muscle pain and fever.
LaboratoryThis section has been translated automatically.
Leukocytosis, mild eosinophilia, BSG and CRP elevation.
DiagnosisThis section has been translated automatically.
- Ultrasound and other imaging techniques.
- Aspiration or smear from abscess material for microbiological examination (culture, PCR).
Differential diagnosisThis section has been translated automatically.
Complication(s)This section has been translated automatically.
Muscle destruction; sepsis.
TherapyThis section has been translated automatically.
- Abscess incision and drainage or generous removal of affected tissue, if necessary under anaesthesia. If necessary reconstruction of destroyed muscle tissue.
- Antibiotic therapy with a penicillinase-resistant penicillin, initially e.g. flucloxacillin or amoxicillin/clavulanic acid or with a cephalosporin (e.g. cefuroxime). Subsequently antibiosis after antibiogram.
- In case of detection of Mycobacterium tuberculosis tuberculostatic therapy.
LiteratureThis section has been translated automatically.
- Chauhan S, Jain S, Varma S, Chauhan S (2004) Tropical pyomyositis (myositis tropicans): current perspective. Postgrade Med J 80: 267-270
- Lederer W (2007) Tropical pyomyositis in children. J Pediatric orthopaedic surgeon B 16: 383