Prevalence of malignancy among adrenal nodules detected in patients with potentially resectable colorectal cancer: Should we perform additional imaging study?

Primary outcome(s): prevalence of adrenal nodule (the number of patients with CT-detected adrenal nodule out of patients who underwent staging CT and had potentially resectable colorectal cancer ) Study Design: Observational Study Model : Others, Time Perspective : Other(Patients with adrenal nodules on staging CT will be identified via retrospective image review, and their medical records and survival data will be reviewed for nodule adjudication.), Enrollment : 7000, Biospecimen Retention : Not collect nor Archive