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首页> 外文期刊>Journal of Comparative Pathology >Ultrastructural Assessment of Granulomas in the Liver of Perch (Perca fluviatilis) Infected by Tapeworm
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Ultrastructural Assessment of Granulomas in the Liver of Perch (Perca fluviatilis) Infected by Tapeworm

机译：Tape虫感染的鲈鱼（Perca fluviatilis）肝肉芽肿的超微结构评估

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摘要

Granulomas caused by migration of larvae of a helminth parasite, Triaenophorus nodulosus, within the liver of perch (Perca fluviatilis) from Rimov Dam Lake (Czech Republic) were assessed by transmission electron microscopy. Lesions were found in the liver of 29 out of 34 perch examined (85.2%) and there were between 1 and 15 T. nodulosus larvae identified per host. Pathological changes were more severe in livers containing more granulomas. Within the granulomas, there were three concentric regions: an outer layer of fibrous connective tissue, a middle clear epithelioid layer and a central dark spindle cell layer. The outer layer contained mast cells, fibroblasts, thick collagen bundles and epithelioid cells. The granulomas contained few lymphocytes and macrophages. Hepatocytes adjacent to the granulomas showed pronounced degeneration (ranging from vacuolar degeneration to acute cellular swelling). (C) 2014 Elsevier Ltd. All rights reserved.t
机译：通过透射电子显微镜评估了来自Rimov Dam Lake（捷克共和国）的鲈鱼（Perca fluviatilis）内的蠕虫寄生虫Triaenophorus nodulosus幼虫迁移引起的肉芽肿。在检查的34个鲈鱼中，有29个在肝脏中发现病变（占85.2％），每个宿主鉴定出1到15个结核结节幼虫。肉芽肿多的肝脏的病理变化更为严重。在肉芽肿内，存在三个同心区域：纤维结缔组织的外层，中间的透明上皮样层和中央的黑梭形细胞层。外层含有肥大细胞，成纤维细胞，厚胶原束和上皮样细胞。肉芽肿中几乎没有淋巴细胞和巨噬细胞。与肉芽肿相邻的肝细胞表现出明显的变性（从液泡变性到急性细胞肿胀）。 （C）2014 Elsevier Ltd.保留所有权利。

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