Lung nodules are fairly common masses of abnormal tissue in the lungs. They can be caused by any type of infection that impacts the respiratory tract, such as fungal infections, tuberculosis or bronchitis. Lung nodules typically don't present any symptoms other than an occasional feeling of tightness in the chest.
According to Dr. Edward C. Rosenow III of the Mayo Clinic, most lung nodules are less than 1 inch, or 25 mm, in size. Anything larger could be malignant.
Chest X-rays, CT scans and biopsies are the best methods for determining whether a lung nodule is benign or malignant.
Lung cancer is often fatal if not caught in the early stages. The surgical removal of a malignant lung nodule is possible and can improve prognosis.
The term nodule comes from a Latin word meaning "knot," according to WiseGeek.com, and lung nodules appear as white, circular shadows, or knots, on an X-ray.
The University of Rochester Medical Center states that cancerous lung nodules often grow very quickly and are more irregularly shaped than benign lung nodules.
Causes of Lung Spots
Lung spots are more common than most people think. Many are produced by harmless scarring in the lungs caused by respiratory infections...
Symptoms of a Cancerous Cyst on a Lung
A cyst on the lung is ultimately a lesion or nodule that is less than 3 cm in size. Often discovered purely...
MAC Lung Disease
MAC lung disease (MAC) was identified in the late 1800s and today still affects many people over the age of 50. It...
Symptoms of Lung Nodules
As human beings, our lungs are important. They must be healthy in order to function properly, and if our lungs do not...
Characteristics of Benign Lung Nodules
Lung nodules, also called pulmonary nodules, are small round growths on the lung that are smaller than three centimeters in diameter. These...
What Are the Treatments for Lung Nodules?
Approximately 1 out of every 500 chest X-rays reveals the growth of a lung nodule, according to the University of Rochester Medical...
How to Get Rid of Muscle Knots Spasms
Is your back sore from muscle knots and spasms? The pain from muscle knots and spasms can be unbearable and can cause...
What Are Nodules?
Nodules are lumps that most commonly form in the thyroid gland or lungs. These lumps are often filled with fluid and can...