盆腔囊性肿块的超声鉴别诊断

    • 摘要: 目的: 探讨盆腔囊性肿块的声像图表现及鉴别诊断。方法: 对86例行阴道超声检查,均诊断盆腔囊性肿块,并分析盆腔囊性肿块声像图表现及特征。结果: 超声诊断卵巢子宫内膜异位囊肿37例,卵巢囊性畸胎瘤31例,卵巢血肿14例,均被超声追踪或手术病理结果证实。1例输卵管卵巢脓肿和1例卵巢囊性畸胎瘤误诊为卵巢子宫内膜异位囊肿,2例输卵管积水误诊为卵巢囊肿。术前超声诊断与术后病理诊断符合率为94.8%。结论: 超声对卵巢子宫内膜异位囊肿及卵巢囊性畸胎瘤诊断率高,但仍需与其它囊性肿块相鉴别。

       

      Abstract: Objective: This study was designed to characterize the ultrastructure of the coccoid Helicobacter pylori(H. pylori) forms in the tissues of carcinoma.Methods: Transmission electron microscopy(TEM) technique was used to examine the structure of coccoid H. pylori in 4 cases of gastric carcinoma and 2 cases of esophageal carcinoma.Results: It was found that the coccoid H. pylori were scattered in cancer nest and cancer interspace,some of which enterded cancer cells,macrophages and other cells.The coccoid H. pylori appeared to be similar to the L-forms of other bacteria with varying cell shape and size,different cytoplasmic electron densities and defects in cell wall.Two types of coccoid H. pylori could be distinguished in the tissues of carcinoma by TEM.Type A was smaller with higher electron density in the cytoplasma,and flagellation on the cell membrane,suggesting that it could be viable.However,the type B was larger with lower electron density in the cytoplasma,and no flagellation on the cell membrane,suggesting that it could be a degenerative form.Conclusions: The coccoid forms of H.pulori still have certain degree of viability,thus they may play an important role in the transmission of H. pylori,the relapse of H. pylori related disease after treatment and the development of the related carcinoma.

       

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