放线菌病并非罕见病,可是在临床上常有误诊、误治的情况发生,所遇4例报告如下:例1 邢某,男,57岁,左耳前钝痛,张口受限月余,于1970年2月3日入院。一个月前,偶感张口困难,影响咀嚼功能,吃饭时腮腺区酸胀,耳屏前麻木,似“木头疙瘩”,日渐加重,自疑为癌,曾用抗菌素症 Actinomycosis is not a common disease, but clinically misdiagnosed, mistakenly rule the occurrence of cases encountered in 4 cases are reported as follows: Example 1 Xing, male, 57 years old, left ear dull pain, mouth more than a month , Was admitted on February 3, 1970. A month ago, I occasionally feel difficult mouth opening, affecting masticatory function, parotid gland swelling when eating, numbness before the tragus, like “wood pimples”, increasing, suspicious of cancer, had used antibiotics