These tiny lumps can grow and clump together, making many large
and small groups of lumps which can affect how the
organ works. It can also cause scar tissue
and permanent organ damage.
In the lungs, sarcoidosis can cause trouble breathing, scar formation and in some cases, respiratory failure. And sarcoidosis is permanent.
If the amount of sarcoidosis you have is small, you have to consider that the interferon you're taking for the Hep C can make it worse.