What causes PMP?
There are a number of theories about the origins of PMP, but there is no known underlying cause. It is generally accepted that appendix cancer is the most common source of the tumors that cause PMP. Cells from a mucinous tumor in the appendix leak into the abdominal cavity and implant on the peritoneum or other abdominal organs. These tumors replicate and produce a mucinous byproduct that spreads throughout the abdomen.
