From: Surveillance for early stages of colon cancer: potentials for optimizing follow-up protocols
Months after operation | Medical history and physical examination | Complete blood count (CEA, CA 19–9 included) | Contrast-enhanced abdominal ultrasound | Abdominal and chest computed tomoghapy | Colonoscopy |
---|---|---|---|---|---|
6 | X | X | X | ||
12 | X | X | X | X | |
18 | X | X | X | ||
24 | X | X | X | ||
30 | X | X | X | ||
36 | X | X | X | X | |
48 | X | X | X | ||
60 | X | X | X |