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目的选取30例组织细胞坏死性淋巴结炎活检标本为对象,评价PCR在组织细胞坏死性淋巴结炎与结核性淋巴结炎鉴别诊断中的意义。方法对30例组织细胞坏死性淋巴结炎活检标本,选用结核分支杆菌DNA特异性插入序列IS6110为引物,采用巢式聚合酶链反应(N-PCR)及凝胶电泳检测组织细胞坏死性淋巴结炎中是否感染结核杆菌。结果 30例组织细胞坏死性淋巴结炎活检标本中8例结核杆菌阳性。结论 PCR可以作为鉴别组织细胞坏死性淋巴结炎与结核性淋巴结炎,尤其是不典型结核性淋巴结炎的重要指标。
Objective To select 30 cases of tissue necrosis lymphadenitis biopsy specimens as the object, to evaluate the significance of PCR in the differential diagnosis of tissue necrosis lymphadenitis and tuberculous lymphadenitis. Methods Thirty cases of tissue necrosis lymphadenitis biopsy specimens were selected. Mycobacterium tuberculosis DNA-specific insertion sequence IS6110 was used as a primer to detect tissue necrosis lymphadenitis by nested polymerase chain reaction (N-PCR) and gel electrophoresis Is it infected with Mycobacterium tuberculosis? Results Eighty cases of Mycobacterium tuberculosis were positive in 30 cases of tissue necrosis lymphadenitis biopsy specimens. Conclusion PCR can be used as an important index to distinguish between tissue necrosis lymphadenitis and tuberculous lymphadenitis, especially atypical tuberculous lymphadenitis.