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Pulmonary edema is a condition of excess fluid within the lung that most frequently is caused by a backup in pulmonary circulation commonly associated with congestive heart failure (CHF).A commonly cause is coronary artery disease, in which blood flow to the heart muscle is restricted. This weakens the heart and results in inadequate pulmonary circulation, causing a backup of blood in the lungs. The condition is seen on chest radiographs as a diffuse in crease in radio density in the hilar regions fading toward the periphery of the lung, and as increased air-fluid levels with horizontal beam projection in more severe conditions.
Reactivation (secondary) tuberculosis usually develops in adults and generally is first evident on radiography bilaterally in the upper lobes as irregular calcifications that are mottle in appearance. Upward retraction of the hila is frequently evident. As healing occurs, fibrous tissue develops with calcification surrounding the region and leaving a type of cavity that can be seen on tomograms of this region. AP lordotic projections are frequently requested for visualization of calcifications and cavitations of apices and upper lobes.
Occupational lung Disease
Anthracosis, also called black lung pneumoconiosis, is caused by deposits of coal dust. With long-term inhalation (10 years or longer), it spreads throughout the lungs and is seen on chest radiographs as small opaque spots or conglomerate masses.
Asbestosis is caused by inhalation of asbestos dust (fibers) that results in pulmonary fibrosis. It may develop into lung cancer, especially in those who smoke.
Silicosis is a permanent condition of the lungs that is caused by inhalation of silica (quartz) dust, a form of sand dust. Occupationally exposed patients include certain mine works, sandblasters, and those who work in similar professions. Chest x-rays show distinctive patterns of nodules and scarring densities. Patients with silicosis are three times more
- ShuangLv 77 年前最佳解答
矽肺是一種永久性的吸入二氧化矽（石英）粉塵，沙塵的一種形式，是由肺部的條件。職業暴露患者有一定的防雷工程，噴砂和類似行業工作的人。胸部X光檢查顯示結節和疤痕密度的獨特模式。矽肺患者的3倍以上.參考資料： me + google + revised
- 7 年前
Please don't become a doctor...