霞石合硅酸钠钾铝(KNa_3Al_4Si_4O_(16))。作者报告2例长期从事霞石矿开采而引起霞石尘肺病例,x线胸片显示:例1主要表现右下叶模糊浓片状阴影,例2为中叶肺不张与两肺弥漫性细结节阴影。均做了肺叶切除术,发现肺门淋巴结呈灰黄色粒状肿大,例1见右下叶有3×2.5cm纤维块,与肺段相应并有一脓腔与枝气管相通。例2发现两肺门及右中叶枝气管旁淋巴结明显肿大并使枝气管腔受挤压。镜下见巨噬细胞内大量异物,组织细胞内发现特殊物质,表现为网状内皮增生与碳末样色素沉着。显微镜下2例标本切片均见与霞石相一 Nepheline sodium silicate potassium aluminum (KNa_3Al_4Si_4O_ (16)). The authors report two cases of nepheline pneumoconiosis caused by long-term mining of nephelite. The x-ray showed that in Example 1, the lower right lobe was blurred and thick, and the shadow 2 was the middle lobe atelectasis and diffuse fine knot Shadows. Have done a lobectomy, hilar lymph node was found gray granular swelling, the right lower lobe in Example 1 3 × 2.5cm fiber block, and the corresponding lung segment and an abscess and bronchial interlinked. Example 2 found that the two hilar and right middle lobe tracheal lymph nodes were significantly enlarged and the branch airway lumen squeezed. Microscopic see a large number of macrophages foreign body, found within the cells of special substances, showed reticuloendothelial hyperplasia and end-carbon pigmentation. Under the microscope, two cases of specimen sections were seen with nepheline phase