Pyomyositis is an acute bacterial abscess involving skeletal muscle. It is relatively uncommon unless one or more risk factors are present.
NOTE: The term pyomyositis may be reserved for primary muscle abscess, without an adjacent focus of infection.
Geographic:
(1) living in the tropics (tropical pyomyositis)
Immunodeficiency or immunosuppression:
(1) HIV disease
(2) leukemia
(3) agammaglobulinemia
(4) diabetes mellitus
Muscle injury:
(1) strenuous exercise
(2) blunt trauma
(3) penetrating injury
(4) intramuscular drug injection (especially with contaminated needles)
(5) preceding infection involving muscle (viral myositis, migrating or residing parasite)
(6) ischemia
Source of bacteria:
(1) transient bacteremia
(2) adjacent soft tissue abscess or other focus of infection
To read more or access our algorithms and calculators, please log in or register.
Specialty: Infectious Diseases, Surgery, general, Surgery, orthopedic
