作者从１０４６例矽肺患者中检出于胸片出现明确矽肺影像前，肺野有淋巴组织钙化１４７例。胸片上表现为圆形或卵圆形，呈空心和实体钙化灶二种改变，直径多在３～６ｍｍ之间。本文着重对这种特殊形态的钙化灶的Ｘ线表现进行动态观察，对其形成的机理、命名、鉴别诊断及其临床意义作简要的分析讨论。认为矽肺肺野淋巴组织钙化是接尘作业工人、０＋及矽肺病人特有的一种早期病理反应，值得引起重视的一种Ｘ线征象。 The authors detected 147 cases of lymphatic calcification in the lung field prior to the presence of a clear silicographic image of 1046 silicosis patients. Chest radiograph showed round or oval, was hollow and solid calcification two changes, more than 3 ~ 6mm in diameter. This article focuses on this special form of calcification X-ray dynamic observation of its mechanism of formation, naming, differential diagnosis and its clinical significance of a brief analysis and discussion. It is thought that calcification of lung and lung lymphatic tissue is an early pathological reaction of workers exposed to dust and 0 + and silicosis. It is worth to pay attention to an X-ray sign.