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Was a spot found on your lung during a scan for something else? This is called a lung nodule, and while the discovery can feel worrying, most lung nodules turn out to be harmless. A proper Lung Nodule Evaluation by an experienced specialist is the best way to understand what it is and whether any further action is needed.
A lung nodule is a small, round spot in the lung, usually found by chance on a chest X-ray or CT scan done for an unrelated reason. Most nodules are small, under 3 cm, and the majority turn out to be benign, often caused by old infections, scar tissue, or other harmless changes in the lung.
However, a small proportion can be an early sign of lung cancer, which is why a proper Lung Nodule Evaluation by a specialist is important rather than ignoring the finding or assuming the worst.
Lung nodules can form for many reasons, and the vast majority are not cancerous. Common causes include:
Old or Healed Infections : Such as tuberculosis or fungal infections, which can leave behind scar tissue.
Granulomas : Small areas of inflammation that form in response to infection or irritation, one of the most common causes of benign nodules.
Benign Tumors : Non-cancerous growths like hamartomas.
Inflammatory Conditions : Such as rheumatoid nodules in patients with autoimmune disease.
Early-Stage Lung Cancer : A smaller proportion of nodules turn out to be malignant, more likely in smokers, older patients, or nodules with certain features on imaging.
Most lung nodules cause no symptoms at all and are found incidentally on a scan done for another reason. When symptoms are present, they're usually related to an underlying cause rather than the nodule itself, and may include:
The goal of Lung Nodule Evaluation is to determine whether a nodule is benign or needs closer monitoring or biopsy, based on its size, shape, growth pattern, and the patient's risk factors. Dr. Manish Aggarwal uses the following tests:
Lung nodules are common and most turn out to be harmless, but distinguishing a benign spot from something that needs attention requires careful evaluation. Dr. Manish Aggarwal decides the right next step based on the nodule's size, appearance, growth pattern, and the patient's individual risk factors, since not every nodule needs the same level of intervention.
Many small, low-risk nodules simply need periodic monitoring through repeat scans, while those with more concerning features may call for further imaging or a biopsy to reach a clear diagnosis. If the nodule turns out to be linked to an infection or inflammation, treatment addresses that directly, and cases confirmed as malignant are promptly guided toward appropriate cancer care.
Don't let an unexplained finding on your scan sit unanswered. Get a clear evaluation from Dr. Manish Aggarwal, your trusted Lung Nodule Evaluation Specialist in Delhi.
Dr. Manish Aggarwal is a pulmonologist with years of experience evaluating and managing lung nodules and other lung conditions. He completed his MBBS and MD in Tuberculosis and Chest Diseases from Delhi University, followed by NHS clinical experience in the United Kingdom and the prestigious FRCP (Glasgow) from the Royal College of Physicians.
He is known for explaining conditions in simple, easy-to-understand language and guiding patients through next steps based on their specific scan findings and risk factors, rather than causing unnecessary worry.
The main tests include a CT scan to characterise the nodule's size, shape, and growth pattern, and a PET-CT scan for nodules with suspicious features. If closer evaluation is needed, a bronchoscopy with biopsy or EBUS may be done to examine the tissue or nearby lymph nodes directly.
A low-dose CT scan of the chest is the most commonly used screening test to detect and evaluate lung nodules, especially in people at higher risk, such as long-term smokers. It gives a far more detailed view than a standard chest X-ray.
The most common cause is a granuloma, a small area of healed inflammation, often from a past infection like tuberculosis or a fungal infection. The vast majority of lung nodules are benign and unrelated to cancer.
There's no single "best" treatment, since it depends entirely on the nodule's characteristics. Small, low-risk nodules are often just monitored with repeat CT scans, while nodules with more concerning features may need a PET-CT scan or biopsy. Dr. Manish Aggarwal decides the right approach based on your specific scan findings.
A biopsy is generally considered when a nodule is large, growing over time, has suspicious features on imaging, or occurs in a patient with significant risk factors like a long smoking history. Your specialist will weigh these factors to decide if and when a biopsy is needed.
There isn't one single blood test that diagnoses a lung nodule, but blood tests may be used to check for signs of infection or inflammation that could explain the nodule, or as part of a broader workup depending on the suspected cause. Imaging remains the primary tool for evaluating lung nodules.
We are available to answer queries, schedule urgent EBUS sessions or arrange Sleep diagnostic devices.
Most lung nodules turn out to be harmless, but only a proper evaluation can confirm that. Get a clear diagnosis and next-step plan from Dr. Manish Aggarwal, your trusted Lung Nodule Evaluation Specialist in Delhi.