I have a friend here who had a VERY serious and traumatic experience with a fulminating fungus in her sinuses, which threatened her eye. She said it was like (sorry to be graphic) peanut butter.....they removed all they could....it came back....she went, I think, to Philadelphia, and had radical surgery, going through her nasal passages. The bridge of her nose was eroded by this "non-malignant fungus" (nothing benign about it!!) It was a terrifying experience, since, while it wasn't a metastatic sort of growth, it was one that spread in situ quite quickly, threatening her eyesight. She did lose sight at one point, right before or after the surgery, and they gave her massive steroids and the problem resolved.....

so...it's a definite issue, but whether or not our household molds can cause such a thing...I doubt it. It's two different things, I would think. I don't know what the household molds do, ...breathing problems, asthma exacerbation...dunno what else...certainly not a healthy environment, but I don't believe that they are considered to be carcinogenic.....Somebody correct me if I am speaking too broadly here.