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Extracolonic cancer in FAP—lifetime risk (modified after Jasperson) [21].
| Extracolonic Cancer | Lifetime Risk for Cancer Observations |
|---|---|
| small bowel (duodenum or periampulla) cancer | 4–12% |
| small bowel (distal to the duodenum) cancer | rare |
| pancreas cancer | 1% |
| thyroid cancer | 1–12% |
| CNS cancer | <1% |
| liver cancer | 1.6% |
| bile ducts cancer | Low, but increased |
| stomach cancer | <1% |
