Risks of testing for prostate cancer include: 1  a raised PSA level does not always indicate prostate cancer and biopsies will be needed to check if cancer is present. 2  biopsies and treatments for prostate cancer have harmful side-effects that may affect quality of life.
fume (plural fumes) 1  A gas or vapour/vapor that smells strongly or is dangerous to inhale. Fumes are solid particles formed by condensation from the gaseous state, e.g. metal oxides from volatilized metals. 2  A material that has been vaporized from the solid state to the gas state and re-coalesced to the solid state.
Fumed silica, also known as pyrogenic silica, is a non-crystalline, fine-grain, low density and high surface area silica. Not to be confused with silica fume, also known as microsilica. The production of precipitated silica starts with the reaction of an alkaline silicate solution with a mineral acid.