
Understand the presentation, screening, and metastasis pattern โ this is a classic Step 1 topic!
๐น Right-sided = bleeds
๐น Left-sided = obstructs
๐น Iron deficiency anemia in older men or postmenopausal women = colorectal cancer until proven otherwise
๐น Colonoscopy is the gold standard
๐น CEA is used for recurrence monitoring, not for screening
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