TIL: ...why all those annoying law office ads about asbestos target people with mesothelioma. I already knew that asbestos can cause mesothelioma (which is a cancer of the pleural tissue surrounding the lungs) as I'm sure anyone who watched TV in the past few years has learned as well. What I learned today was that asbestos actually causes significantly more lung cancer than mesothelioma. The reason that lawyers pounce on patients with the latter is that lung cancer can be caused by many things (most often smoking) whereas practically all mesothelioma is caused by asbestos. Mesothelioma is an almost guaranteed win in court if the asbestos exposure is well documented.
Atelectasis is the collapse of part or all of a lung.
An air bronchogram is a radiological finding where air-filled bronchi are made weirdly visible because of contrast with pathologically dense adjacent alveoli (air sacs). The density can be caused by many things including edema (fluid), cancer, and atelectasis.
Silhouette sign is a misnomer for the radiological finding of the loss of a silhouette sign. This is when a normally crisp border as seen on a x-ray image is unusually fuzzy, indicating that some pathological process is present.
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