My father was diagnosed with lung nodule. should i be worried for him?

Needs investigation: Lung nodule needs to be investigated to ascertain the underlying pathology. It may a residua of an old infection, an easily treatable infection or lung cancer. Worrying would not address the issue. Your father should see an internist or a pulmonary specialist.

Yes and no: Yes, if the nodule is cancer. No, if it is not. The key is diagnosis of what the nature of the nodule is. This can be resolved by tissue diagnosis doing a percutaneous needle biopsy, video-assisted thoracoscopy or open thoracotomy. On the other hand, if the nodule is too small, 5 mm or less, a repeat cat scan for change is size or configuration may be all that is needed for the time being. Consult.

Not necessarily: If he has a lung nodule, he should be evaluated by a board certified thoracic surgeon or pulmonologist fo risk evaluation. Based on his demographics (such as smoking history, where he grew up and age) as well as characteristics of the nodule on a chest ct scan, it can be determined if further intervention is required.

Many causes: There are many potential causes of lung nodule. Talk to a pulmonologist or thoracic surgeon about a differential diagnosis.