With the passage of time Mycobacterium tuberculosis (also called Bacillus Koch) can transform into crystals of calcium. These can affect any organ such as the brain,[3][4] intestine,[5] ovaries,[6][7] breast,[8][9][10] lungs,[11][12][13] esophagus,[14] intestine,[15][16] liver,[17] pancreas, bones,[18][19] and many others.