What does it mean for a polyp to be "pre-cancerous"?

Confusing: Most colon cancers are adenocarcinomas. Thus if your polyp has adenomatous compeonents found microscopically by the pathologist, then it would be considered a precancerous polyp or if iot showed microscopic evidence of dysplasia it too would be considered precancerous.

Don't worry: Most cancers started as a polyp , but certainly not all polyps turn into cancer, only have a chance to. For small adenomotous polyps this is rare, for large dysplastic polyps these have a higher potential for doing so. Regardless your has been removed, you will be fine.

Risk of cancer: "pre-cancerous" polyps have a risk of becoming cancer if allowed to grow and get larger. These need to be removed by colonoscopy usually.