Serrated polyposis syndrome

Multiple polyps (hyperplastic or serrated) throughout the colon
We don't know much about the genetic cause yet
Diagnosis
- At least 5 serrated polyps proximal to sigmoid, two of which >10mm in diameter
- Any number of serrated polyps proximal to the sigmoid in an individual with a first-degree relative with the syndrome
- More than 20 serrated polyps of any size distributed throughout the colon