My mother had lung cancer. What are the chances of recurrence?

Question

Hello doctor,

My mother is 60 and had surgery six months ago for early-stage lung cancer. They removed part of her lung, and the doctor said the margins were clear. She did not need chemo after surgery. Now, during the follow-up CT scan, they found a small new spot near the previous area.

Could this mean cancer came back already?
Can scar tissue after surgery look similar on a scan?
She has a mild cough sometimes, but otherwise feels fine. Just trying to understand how often recurrence happens and what tests confirm it.

Kindly suggest.

Answer 1

Hello,

Welcome to icliniq.com.

I understand why this new finding on the scan is worrying, especially after going through surgery earlier. It is quite common for patients and families to feel anxious when something new appears on a follow-up CT (computed tomography).

A small spot seen near the previous surgery area does not always mean the cancer has returned. After lung surgery, scar tissue and healing changes in the lung can sometimes look like small nodules or opacities on CT scans. Infections or temporary inflammation in the lung can also produce similar appearances.

Recurrence after early-stage lung cancer surgery can happen in some patients, but it is not very common when the tumor was completely removed, and margins were clear. That is exactly why regular follow-up CT scans are done, to detect any change early and evaluate it carefully.

To confirm whether it is a recurrence or just a post-surgical change, doctors usually compare the current CT with previous scans and may repeat another CT after a short interval to see if the spot changes in size.

If the lesion looks suspicious or increases in size, further evaluation, such as a PET (positron emission tomography) scan or biopsy, may be advised to confirm the diagnosis.

I hope this helps.

For more queries, please feel free to reach out to me anytime.

Thank you.