Conclusion: The diffuse neuroendocrine cells exist in fetus thymus.

结论：胎儿胸腺中存在着弥散神经内分泌细胞。

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SCLC with neuroendocrine organ-like nest-like structure, NHL tumor cells is more diffuse, uniform, does not have a specific structure;

SCLC 具有神经内分泌器官样巢状结构，NHL瘤细胞更弥漫、均一，不具有特异性结构；

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