One of the most aggressive types of breast cancer may be caused by a single type of faulty gene, according to researchers.

"Basal-like breast cancer tumors" are the cancerous tumors under the proverbial microscope here, and the British researchers who published their findings reiterated that basal-type tumors grow fast and spread quickly.

In addition, conventional drugs have little affect in many of these cases. These would be the type of breast cancer tumors to find a consistent treatment to, if at all possible. Genetic research as it relates to fast-growing cancers is hopefully in its infancy -- meaning we can expect many more breakthroughs in the next decade.