I'm 58 yrs old, 260 lbs, and had a fecalith that was slightly larger than a softball removed surgically in February. The surgeon told me it was completely encased in a hard shell of calcium. I could not pass the fecalith ,but it did get to within five inches of my stoma, that I acquired from having colon cancer back in 2009. He told me that it would have torn my stoma completely out of my gut had my body tried hard to pass it. My question is this: How could my body encase something in calcium? And where did it get all that calcium from? I had a completely clean colonoscopy just 3 years ago.