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What are the symptoms of lung cysts?

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Quick Answer

Possible symptoms of lung cysts or nodules are a persistent cough, wheezing, difficulty breathing, coughing blood and fever, according to WebMD. It is also possible for benign lung cysts to be symptomless.

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What are the symptoms of lung cysts?
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Full Answer

A lung cyst or nodule is excessive tissue growth on the lung with healthy tissue around it, says WebMD. Often, they are simply benign regions of tissue with little to no effect on the individual. These benign cysts appear in one out of 500 lung X-rays. Because of the tendency to present no symptoms, discovery is often accidental. The chance of the cyst being benign is higher in non-smokers and those under 40 years of age. Many benign cysts also contain calcium and are small.

Doctors observe lung nodules via X-ray for a period of up to two years to determine if they are benign, reports WebMD. The observation period is shorter for lower risk individuals with very small cysts. Cancerous tumors quickly double in size while benign cysts grow slowly. Benign cysts also have smooth edges, uniform color and regular shape in comparison to cancerous tumors. Blood tests, biopsies and skin tests are also useful in determining if a cyst is benign and if there are any additional complications.

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