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you should not worry about removing the scar because there are no specific methods to do so. Please get evaluated and no other exact cause of the finding. You may need to get CT scan
I advise you to visit your pulmonologist and get evaluated thoroughly.
However I think a finding which is not symptomatically related to you should not be considered a criteria to make you unfit for the medical examination.but still the rules of various organizations are different.
Hope I answered your question.