银汞着色症的光镜及X线能谱分析

Light microscope and energy dispersive X-rayanalysis of amalgam pigmentation

应用光镜分析了２４例银汞着色症，１６例为银汞碎屑，８例为银汞块和碎屑混合。银汞主要沿着上皮基底膜、血管壁、神经纤维、网织纤维、肌内膜沉着，进入骨组织，可引起骨微裂及骨陷窝空虚等退行性改变。８例出现病理性钙化，１８例出现炎症。２例作了Ｘ线能谱分析，发现组织各处的Ａｇ、Ｈｇ、Ｓｎ和Ｃａ的含量各不相同。

Abstract24 cases of amalgam pigmentation were analyzed bylight microscope. 16 cases were amalgam debris, 8 caseswere amalgam fragments and debris mixed. The amal-gam distributed mainly along basement membrane of theepithelium , wall of blood vessels , nerve fibers , reticularfibers and endomysiums. In case where amalgani en-tered the bone, bone cells disappeared, lacuna emptiedand microfracture of bony trabecullae occurred. In 8cases pathologic calcification were found and in 18 casesthere were inflammatory responses. 2 cases were ana-lyzed by energy dispersive X-ray. It was found that inthe different sites of tissues there were different contentof Ag, Hg, Sn and Ca.