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Extracolonic diseases in the 443 patients with familial adenomatous polyposis
| Type of diseases | Number of patients (%) |
|---|---|
| Fundic gastric polyposis | 289 (65.4) |
| Gastric adenoma | 107 (24.3) |
| Gastric cancer | 58 (13.1) |
| Duodenal adenoma | 239 (54.0) |
| Thyroid cancer | 20 (4.5) |
| Desmoid tumor | 60 (13.6) |
| Jaw osteoma | 20 (4.5) |
