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胰岛肿瘤以胰岛素瘤为主,非胰岛素瘤较少见。到1973年,胰岛素瘤已报告了1000多例。胰岛素瘤的超微结构,国内罕见报道。本文对临床确诊的一例胰岛素瘤患者的外科手术标本,以光镜电镜观察其形态结构,并对肿瘤细胞的分型及淀粉样物质进行了讨论。此例患者为单发性肿瘤,位于胰体与胰尾交界部,直径2.5×2.5cm,圆形,黄褐色,与周围界线清楚。材料和方法自肿瘤的不同部位切取标本。常规光镜标本采用常规HoE染色和Bensley改良的Mallory胰岛染色法。电镜标本采用常规超薄切片染色,透射电镜观察。
Islet tumor is predominantly insulinoma, non-insulinoma is rare. By 1973, insulinomas had been reported in more than 1,000 cases. Insulinoma ultrastructure, rarely seen in China. In this paper, a clinically diagnosed patients with insulinoma surgical specimens were observed by light microscopy electron microscopy morphological structure, and the type of tumor cells and amyloid were discussed. This case of patients with solitary tumor, located in the pancreatic body and pancreatic tail junction, diameter 2.5 × 2.5cm, round, brown, and the surrounding clear line. Materials and Methods The specimens were dissected from different parts of the tumor. Conventional light microscopy was performed using conventional HoE staining and Bensley modified Mallory islet staining. Electron microscopy using conventional ultra-thin section staining, transmission electron microscopy.