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肺门淋巴结环形钙化(亦称蛋壳样钙化),国内外资料报导,系尘肺的X线征象之一。为了探索它的特点,我们从钨矿、煤矿等接触粉尘作业工人7100例体检胸片中,找出40例肺门淋巴结环形钙化病例,分析如下: 一般资料40例肺门环形钙化中,钨矿11例,占所收集资料的钨矿粉尘作业工人受检者的0.73%;煤矿28例,占所收集资料的煤矿粉尘作业工人受检者的0.5%;地面石工1例。40例中现诊断为可疑尘肺3例(均在煤矿),Ⅰ期5例(钨矿1,煤矿4),Ⅰ期合并结核2例(均在煤矿),Ⅱ期14例(钨矿4,煤矿9,石工1),Ⅱ期合并结核3例(钨矿1,煤矿2),Ⅲ期4例(钨矿1,煤矿3),Ⅲ期合并结核9例(钨矿4,煤矿5)。40例中目前已死亡4例。工种;钨矿11例中,风钻工4例,单手锤工7例;煤矿28例中,掘进工11例,采
Hilar lymph node ring calcification (also known as egg shell-like calcification), domestic and foreign data, Department of pneumoconiosis X-ray signs. In order to explore its characteristics, we found 40 cases of ring-shaped calcification of hilar lymph nodes from the 7100 cases of workers exposed to dust, such as tungsten mines and coal mines. The analysis is as follows: General information 40 cases of hilar ring calcification, tungsten ore 11 cases, accounting for 0.73% of the collected tungsten mine dust workers; 28 coal mines, accounting for 0.5% of the collected coal mine dust workers; and 1 ground masonry. Forty cases were diagnosed as suspicious pneumoconiosis in 3 cases (all in coal mine), Ⅰ in 5 cases (Tungsten 1, 4), stage Ⅰ with tuberculosis in 2 cases (both in coal mine), 14 cases in stage Ⅱ (Tungsten 4, 9 in mine, 1 in masonry, 3 in stage Ⅱ combined with tuberculosis (1 in tungsten mine and 2 in coal mine), 4 in stage Ⅲ (1 in tungsten mine and 3 in coal mine), and 9 in stage Ⅲ (tungsten ore 4 and coal mine 5). In 40 cases, 4 patients have died at present. Among the 11 types of tungsten ore, 4 were wind-drilling workers and 7 were single-handed hammering workers. Among the 28 coal miners, 11 were founding workers, and mining