Actinomycosis
摘要
Actinomycosis is a chronic granulomatous, suppurative, and fibrosing disease caused by anaerobic, gram-positive, non-acid-fast, branched, filamentous bacteria. The most commonly isolated organism is Actinomyces israelii, although A. naeslundii, A. viscosus, A. odontolyticus, and A. propionica have also been shown to cause the human disease.