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强壮粗体虫是鳜肠道最常见寄生蠕虫。通过光镜及电镜对自然感染强壮粗体虫的鳜肠道进行了组织病理观察。强壮粗体虫的寄生引起鳜肠上皮细胞脱落、肠固有膜层结缔组织增生及白细胞向病灶处浸润 ,并可观察到嗜酸性粒细胞附着在与肠上皮及固有膜接触的虫体的体壁及吻部。在虫体吻部与肠固有膜层接触处依次观察到纤维细胞、成纤维细胞、嗜酸性粒细胞等 ,其中嗜酸性粒细胞又可分为未成熟嗜酸性粒细胞、成熟的嗜酸性粒细胞及正在脱颗粒的嗜酸性粒细胞。另外在肠壁的固有膜层观察到包裹虫体的结缔组织纤维囊 ,囊壁由三层结构构成 ,同时在鳜肠壁相同的位置观察到被宿主细胞浸润了的组织空腔 ,推测其为结缔组织纤维囊退化所形成
Strong boll worm is the most common intestinal parasitic worm. Histopathology was observed by light microscope and electron microscope on the gut intestinal tract of naturally infected strong worm. Parasitism caused by strong bollworm causes intestinal epithelial cells shedding, connective tissue hyperplasia of intestinal lamina propria and infiltration of leukocytes into the lesion, and eosinophil attachment to the body wall of parasites contacting the intestinal epithelium and lamina propria And kisses. In the larvae kiss with lamina propria lamina contact observed at the order of fibroblasts, fibroblasts, eosinophils, eosinophils can be divided into immature eosinophils, mature eosinophils And degranulation of eosinophils. In addition, in the lamina propria of the intestinal wall, the connective tissue capsule encapsulating the parasite was observed. The wall of the capsule consisted of a three-layer structure. At the same time, the cavity of the tissue infiltrated by the host cell was observed in the same position of the intestinal wall, Connective tissue fiber capsule formed by degeneration