已知免疫反应基因与HLA-DR1 位点密切相关，正常情况下HLA-DR 抗原通过位于上皮内的郎格罕细胞(Langhans cell,LC) 表面的抗原表达出来［3］。近年来越来越多的研究结果支持OLP 是一种由T 淋巴细胞介导的免疫反应。
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Langhans cell carcinoma 朗汉斯细胞癌
langhans' cell 郎罕细胞
Langhans giant cell 巨细胞 ; 朗格汉斯巨细胞 ; 郎罕氏巨细胞 ; 结节中央郎罕斯巨细胞
Langhans' giant cell 朗汉斯巨细胞
Langhans s giant cell 郎汉斯巨细胞
Seen here are two Langhans type giant cells in which the nuclei are lined up around the periphery of the cell.
图示两个朗格汉斯巨细胞，其细胞核沿着细胞周围排列。
The typical giant cell for infectious granulomas is called a Langhans giant cell and has the nuclei lined up along one edge of the cell.
感染性肉芽肿形成典型的巨细胞叫朗格罕斯巨细胞，它的细胞核沿细胞边缘排列。肉芽肿性炎持续数月到数年。
This well-formed granuloma has a large Langhans giant cell in the center.
典型的肉芽肿中央有一大的朗格罕斯巨细胞。
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