High quality cancer care goes beyond this, and includes a host of additional components, including the pre-operative identification and histologic diagnosis of colon cancer, pre-operative staging computed tomography (CT) scanning, carcinoembryonic antigen (CEA) testing, pre-operative colonoscopy, pre-operative medical optimization, oncologic surgical resection including appropriate pathology requests, post-operative in-hospital management, short-interval outpatient follow-up, and timely referral to medical oncology (where indicated). Here, CEACAM5 is linked to cancer.