NCCN Practice Guidelines
Colorectal cancer screening. Version 2.2013. [Link]
The 2013 NCCN guidelines recommend that tumor screening for LS be performed for:
All CRC patients
CRC patients diagnosed <70 years and also those 70 years and above who meet Bethesda guidelines
All endometrial cancer patients age 50 or below
Summary: This comprehensive practice guideline also addresses diagnostic criteria and management for LS, and includes a helpful algorithm for following up on tumor testing results.