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作者对某锑冶炼厂的51名男性接尘(粉尘中含游离SiO_2 0.82—4.72%、Sb_2O_3 38.73—88.6%、Sb_2O_5、2.11—7.82%)工人在25年内分别进行了2—3次检查。检查内容包括体格检查、实验室分析、胸部X线摄片及肺功能检查。 X线征象 发现锑尘肺的特征为弥漫性密集分布的圆形或不规则多边形点状浊斑,直径通常小于1.0mm,在中肺野特别密集。这种胸部X线表现描述为撒布的微砂样颗粒。P型或针头样病变是最常见的单纯性尘肺的特征。偶尔发现微小结节型单纯性尘肺(q型),直径在1—3mm之间,通常呈不规则形。未发现直径大于3mm的浊斑和融合的大块纤维化。此外还发现肺门阴影增大,密度增浓和上下肺野的肺气肿改变。17例(33.3%)有支气管周围
The authors carried out 2-3 inspections on 51 men exposed to dust from an antimony smelter (dust containing 0.12-4.72% of free SiO 2, 38.73-88.6% of Sb 2 O 3, 2-11-7.82% of Sb 2 O 5, respectively) within 25 years. Check the contents, including physical examination, laboratory analysis, chest X-ray and pulmonary function tests. X-ray findings of antimony pneumoconiosis characterized by diffuse densely distributed round or irregular polygons of spot-like cloudy spots, usually less than 1.0mm in diameter, particularly dense in the lung field. This chest X-ray presentation is described as sprinkled microscopic particles. P-type or needle-like lesions are the most common features of simple pneumoconiosis. Occasionally found a simple nodular pneumoconiosis (q-type), the diameter of 1-3mm, usually irregular shape. No speckles larger than 3 mm in diameter and confluent bulk fibrosis were found. In addition, hilar shadow was also found to increase, density and lung emphysema up and down changes. 17 cases (33.3%) had bronchial circumference