Are there reliable ways to predict if colon polyps will become malignant?

Repeated evaluation of a colon polyp with x-rays or by looking at it directly with either a sigmoidoscope or a long, flexible colonoscope are the only other ways to determine whether the polyp is changing or growing larger.

Unfortunately, because cancer develops at the microscopic level, these evaluations cannot reliably predict if a polyp is becoming malignant.

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