外区主要由网状上皮细胞、柱状上皮细胞、黏液细胞组成；
The outer zone is made up of reticular cells, columnar cells and mucous cells;
一种是在柱状上皮细胞组成的外分泌腺有大量淋巴细胞浸润，往往形成淋巴滤泡样结构。
One is composed of columnar epithelial cells Waibanbixian a large number of lymphocytic infiltration, often the lymphoid follicles-like structure.
结果气管内痰液可查到纤毛柱状上皮细胞或圆柱形柱状细胞，但咽部痰液查不到上述细胞。
Result The cilium columnar epithelia or cylindric cell have be found in sputum of the tracheal, no cell mentioned above was checked in sputum collected from pharyngeal portion.
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