Objective To explore the exist of L-form Mycobacterium bacilli in the lesions of bone and joint tuberculosis.

目的探讨骨关节结核病灶中，结核菌l型的存在状况。

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While in silicosis group, none of all 102 cases was found sputum Mycobacterium tuberculosis culture positive, but culture positive rate of its L-form reached 8% (8 cases).

矽肺组10 2例患者中，结核分枝杆菌培养均为阴性，而结核分枝杆菌L型培养阳性8例，阳性率为8%。

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