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1.The report suggest there is a
solitary pulmonary nodule of 3 mm, the pulmonary nodule above 3 mm need to be monitored.
2.As possibilities to get in to malignancy are there - in this case you need to get a course of antibiotic and get a followup scan done.
3.If the lesion resolves or reduces in size, well and good. But if there is any increase - needs further evaluation.
4.Next time when you get the scan, a contrast enhanced scan will be useful to pick more characters.
5.In this case at this point malignancy / cancer can not be ruled out - need to followup in further scans.
Good luck.
Hope i have answered your query,
any thing to ask ? do not hesitate to ask.
http://doctor.healthcaremagic.com/doctors/dr-ganesh/62888