作者报告3例侵犯面区的放线菌病,并对诊断和发病部位等问题进行了讨论。放线菌病系一种霉菌感染、非接触传染的肉芽肿病。放线菌常存在扁桃体隐窝、齿槽、齿龈缝和牙周袋内的残留物中,通常并不发病,只有当齿部手术、颌部骨折或其它病变引起上述部位 The authors reported 3 cases of invasive actinomycosis in the noodles, and discussed the diagnosis and the location of the disease. Actinomycosis is a mold infection, non-contagious granulomatosis. Actinomycetes often exist in tonsils, alveoli, gingival crevices and periodontal pocket residues, usually not disease, only when the tooth surgery, jaw fractures or other lesions caused by these parts