Actinomycosis is a granulomatous suppurative disease caused mainly by Actinomyces israelii which is a normal saprophyte of the oral cavity, nasopharynx and gastrointestinal tract.

• 摘要放射线菌病主要是由一种存在人体口腔、鼻咽部及肠胃道的正常腐物寄生菌（以色列放射线菌）感染所形成的化脓性肉芽肿疾病。