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hi my step daughter was diagnoised with Lung Nodule they did a ct scan and and said its only one and to wait 6 months for futher testing why so lond she is 18 dont smoke but she is over weight what could have caused it at such a young age and a non smoker i think. well can you email me with some info or answers

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A pulmonary nodule is a small, roundish growth on the lung—sometimes called a spot on the lung—that is easy to find and hard to diagnose. Pulmonary nodules turn up in about one of every 500 chest x-rays. But because they can be a form of early-stage cancer, it’s important to distinguish a benign nodule from a cancerous nodule as early as possible. Therefore, doctors approach every pulmonary nodule as cancerous until they can prove otherwise.

If a spot on the lung has a diameter of three centimeters or less, it’s called a nodule. If it’s bigger than that, it’s called a mass and undergoes a different evaluation process. About 40 percent of pulmonary nodules turn out to be cancerous. Half of all patients treated for a cancerous pulmonary nodule live at least five years past the diagnosis. But if the nodule is one centimeter across or smaller, survival after five years rises to 80 percent. That’s why early detection is critical.

Benign pulmonary nodules are just that—benign. There is very little growth or change, if there’s any at all. Cancerous pulmonary nodules, however, are known to grow relatively quickly—usually doubling in size every four months but sometimes as fast as every 25 days.

A cancerous nodule is a lesion or “sore” that steadily engulfs more and more of the structures of the lung. Over time the patient will experience shortness of breath, fatigue, and chest pain.

The vast majority of pulmonary nodules—more than 90%—are discovered essentially by accident. They’re spotted incidentally in a chest x-ray or CT (computed tomography) scan performed for other purposes.
Benign nodules are almost always healed over “wounds” on the lung left from tuberculosis or a fungal infection, although there are other, less common causes.

Cancerous nodules can be the first stage of a primary lung cancer, brought on by smoking or any other common cause of lung cancer. They also can be a secondary cancer that metastasized in the lungs from a primary cancer elsewhere in the body.

In almost every case, benign pulmonary nodules require no treatment.

Cancerous nodules, however, usually are treated by removing them surgically. Several surgical procedures are used, depending on the size, condition and location of the nodule:

• Video-assisted thorocoscopic surgery is a procedure similar to “scoping” an injured knee. The surgeon inserts the thorascopic device into the lung and withdraws the offending nodule tissue.
• A mini-thoracotomy is a minimally invasive surgical procedure that zeros in on the nodule. It is chosen instead of a full thoracotomy whenever possible.
• A thoracotomy is a comprehensive, invasive procedure whose goal is removal of the diseased portion of the lung—sometime a sizeable “wedge” of the organ.