What is a lung nodule?

X-ray spot. It can be anything from an old inactive walled-off TB of fungus infection to a benign tumor to cancer to something as exotic as a dog heartworm that went far astray. Here in kansas, most are old histoplasmosis. But a spot is lung cancer until you & your physician have a reason to think otherwise. Good luck, and be brave.
See below. A spot on the lungs, smaller than 3 cm (otherwise it is called a mass), seen on cxr and/or ct chest, which should not be there. May be due to anything from scar tissue through infection or autoimmune disease, to cancer. Consult a pulmonologist if you have one.
Abnormal tissue. Most lung nodules are not cancerous. They are usually the result of a previous infection. In some areas of the world, certain fungal infections make them very common. In older patients with smoking history, physicians will always be concerned that a nodule is lung cancer. Depending on a patient's risk factors, comorbid diseases and the size of the nodule, further tests may be necessary.
Abnormaility. A lung "nodule" is a term for small abnormalities seen on xray and ct scans. Most are found to be non-cancer. If larger, 2.5 - 3cm or bigger, will call it a "mass". However, all lung nodules and masses should be evaluated and followed by referral to a comprehensive thoracic surgical cancer program. Integration into a comprehensive program saves lives and decreases unnecessary morbidity.

Related Questions

Please tell me what does a lung nodule indicate?

Lung nodule. Lung nodules are densities in the lungs seen in imaging procedures. The indication depends on how they look like, calcified or not, cavitary or not. They can be scars, old granuloma, localized infection (benign ones) or they can be cancers. That is why when we see them we are aggressive in working them up to make sure they are diagnosed early as if cancer, best treatment is removal if not spread. Read more...
A Lung nodule. Depending on risk factors, a lung nodule may have higher than 50% risk of being malignant. The diagnosis of cancer can only be made by a pathologist upon microscopic examination of a tissue biopsy. Read more...

What does a lung nodule indicate? How is it treated?

X-ray change. a rounded density on an x-ray. it is non-specific unless calcified. serial x-ray and ct follow up is the way to follow a nodule. if it increases in size a biopsy could be done. Read more...
Usually nothing. Most people, if you go looking, have lung nodules and most are benign scar-like reactions in the lung, and therefore they don't need to be treated any more than a freckle or mole on your skin needs to be treated. Just like moles, some lung nodules (<4% in high risk people) can be cancer and should be followed to see if they change. . Read more...

Pls advice me what symptoms a lung nodule would normally cause? Mine is 8mm, unrelated to dilated bronchi, would it increase in size if its not cancer?

An 8mm Nodule. Is too small to give any symptoms. If it is cancer it would continue to grow and grow. Large nodules that obstruct airways cause shortness of breath and coughing and sometimes bleeding in the lung. Read more...
Probably none. Most lung nodules are asymptomatic when they are small(1-2cm). It is a good idea to monitor it and recheck it in 2 months and see if it is growing in size. If it gets over 1cm in size, it would be suspected as an infection(fungal infections can do this) or it could be cancer but lung cancer would be rare under 40 years of age even in a smoker cancer. Read more...

What could cause a lung nodule to thicken?

Growth. If a lung nodule thickens, that means it is growing. Whether this is cancer, infection or anything else, you need to find out. Read more...
Lung nodule. A lung nodule can be anything: infection, an old scar, a dormant organism, a cluster of inflammatory cells, or cancer. It cannot be evaluated without context. A nodule in a smoker who's 70 yo is different from that of someone young, nonsmoker, living in an area known for valley fever for ex. All of the above can thicken. Scar becomes evident. Cancer progresses. Or an infection grows. See your doc. Read more...

Pls can u advice me what causes a benign lung nodule, thanks?

Inflamation, etc. Benign nodules are often the result of abnormal tissue, inflammation and/or scar. This can result from inhaling something or having an infection. Read more...
Many. There are many causes of benign lung nodules. Of highlight are scars like an old pneumonia that involutes and causes a nodular looking thing, old granulomas, but most of them we don't know and we don't usually worry but to make sure they are really benign. Read more...

What's a difference between lung nodule and intrapulmonary nodule? What's smallest size in mm that can be detected on CT scan?

No difference. They are two terms for the same thing. The smallest size detectable depends on the type of CT scanner and the technical parameters of the scan. A high resolution, thin section scan could potentially detect lesions 1mm or so in size. Read more...

What are lung nodules?

Ask your doctor. If you have lung nodules we need to know who told you about them? Lung nodules are not normallly present ; if they are new your doctor needs to guide you to get further examination to find out the cause. The cause is either an infection, (old or new) or it could be something more serious. In older adults or smokers we worry about lung cancer as one potential cause. This may need further testing by. Read more...
Lung nodules. Are densities or white areas, roundish usually that are seen in xr of the lungs which are not usually seen in normal, or regular chest x-rays. When we see them we do have to make decisions if pathologic to work them up to make sure they are not cancers or infections. When seen they don't always mean disease. Read more...

What causes lung nodules? Can you share some sources?

Smoking. check on google. There are too many things that can do it. Most importantly, smoking. Check with your lung doc to know for sure. Lung nodules can be life threatening. Read more...