脾脏动脉周围淋巴鞘内巨噬细胞增多；
There is appearance of infiltration with epithelioid macrophages in periarteriolar lymphoid sheath of spleen.
颈深上淋巴结肿大，其中有71.6%与受累的颈动脉鞘区同侧。
Upper neck lymphadenopathy, 71.6% of which were ipsilateral with the primary foci.
透射电镜观察表明，棉铃虫触角上起嗅觉作用的毛形感器和锥形感器均由表皮壁、鞘细胞、感受器淋巴液和感觉神经细胞树突等结构组成。
Sensillum trichodeum and sensillum basiconicum, the main chemical odor receptors on antennae of Helicoverpa armigera, consist of cuticular wall, sheath cells, sensillum lymph and dendrites.
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