Complex sentence: A fourth type of cancer that arises in the pancreas is the intraductal tubulopapillary neoplasm, which was recognised by the WHO in 2010 and constitutes about 1-3% of all pancreatic neoplasms.
Split into simpler sentences: A fourth type of cancer that arises in the pancreas is the intraductal tubulopapillary neoplasm. This type was recognised by the WHO in 2010 and constitutes about 1-3% of all pancreatic neoplasms.