What about CT lung shadows?

CT lung shadow, the first to be clear is the nature of the lesion, to see the lesion location, size, shape, density, border conditions, and adjacent tissue relationship; patient's age, sex, smoking, etc. If the lesion is small, can not be qualitative, is the first time to find the lesion, it needs follow-up observation. The first review, it is recommended that three months after the discovery of the lesion, observe whether there is growth, changes. If the patient is particularly anxious and cannot accept an uncertain diagnosis, PET-CT may also be recommended.