Hi,

Thanks for the query.

Segmental atelectasis and fibrosis are the progressive steps / process in infection.

Atelectasis means collapase of alveoli (respiratory basic unit) which progressively get replaced by fibrous tissue - referred to as fibrosis. So fibrosis will be last step. Presence of fibrosis denotes past infection; accordingly fibrosis of upper lobe denotes old infection. It will not hamper the lung capacity much.

As you have done X-rays alone, I suggest you to consult a pulmonologist and also go for High Resonance Computed Tomography (HRCT) thorax for complete evaluation of lungs. Seriousness of disease process can be decided only after complete evaluation and physical examination.

Hope I have answered your query well. Let me know if you have any other concerns.

Regards

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