dormant histoplasmosis & lung 'spots'

    Having had histoplasmosis as a child, white 'spots' are evident on my chest x-rays as 'scar tissue'. Approximately 50 years later with no evident recurrence of histoplasmosis, a chest x-ray revealed 2 spots in the lower left lung. No chest x-ray from previous times have yet been used as a baseline. A CT scan was done 1 week later.
     I live & work in an area where fungus and mold and mildew is prevalent & have had continuous asthematic & sputem evidences. When leaving the environment, I revert to normal.
     Could the current environment contribute to abnormal readings and the possibility that the readings could generate an erroneous 'cancer' possibility?