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对5例少年喉乳头状瘤活检标本按常规方法制成超薄切片进行电镜观察,发现嗜中性白细胞从结缔组织蒂游入瘤细胞间隙。2例曾多次发现嗜中性细胞很接近瘤细胞,有好些纤细突起从嗜中性细胞表面伸出以与瘤细胞建立密切联系,而瘤细胞却伸出巨大胞浆以包绕和吞噬嗜中性白细胞;偶见嗜中性白细胞完全处于瘤细胞内,但二者无膜分隔,还可见到变性和解体后的嗜中性白细胞残余以胞浆碎屑形式分散在瘤细胞内,某些有空泡围绕,某些则围之以膜。本观察提示作为人体防卫细胞的嗜中性白细胞遭到了瘤细胞的
5 cases of juvenile laryngeal papilloma biopsy specimens were made by conventional methods ultra-thin sections were observed by electron microscopy and found neutrophils swim from the connective tissue pedicle gap into the tumor cells. Two cases of neutrophils were found many times close to the tumor cells, with many slender protrusions protruding from the surface of the neutrophils to establish close contact with the tumor cells, whereas the tumor cells stretched out huge cytoplasm to wrap around and phagocytosis Neutrophils; occasionally neutrophils are completely in the tumor cells, but both without membrane separation, can also be seen after degeneration and disintegration of neutrophil remnants in the form of cytoplasmic debris dispersed in the tumor cells, some There are empty bubbles around, some surrounded by a film. This observation suggests neutrophils as human defensive cells have been tumor cells