Tempus CRC Surveillance Study: A Longitudinal Circulating Tumor DNA (ctDNA) Biomarker Profiling Study of Patients With Colorectal Cancer (CRC) Using Comprehensive Next-Generation Sequencing (NGS)Assays

Inclusion Criteria: * Known or suspected colorectal adenocarcinoma (Stage I to IVA disease) * Planning to undergo or has undergone a surgical resection for suspected adenocarcinoma of the colon or rectum with curative intent. * 18 years old or older * Willing and able to provide informed consent * Willing to have additional blood samples collected during routine surveillance visits Exclusion Criteria: * Not willing to have additional blood samples collected * Pathology that is not consistent with colorectal adenocarcinoma