Hi, Welcome to icliniq.com. According to guidelines when there is a single nodule in the lung of size less than 3 mm we ask to follow up in six months for repeat computed tomography (CT). In the repeat CT, if we find any enlargement of the nodule or any new developments we usually ask for a biopsy of the existing nodule. That is how we practice. So, I think you should repeat your CT after six months and if the size increases, you should get a biopsy done.
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