Table 5.
Characteristics of family #12
| ID | Polyposis Phenotype | Age (y) | Mutation | Gastric adenoma | Duodenal adenoma | Duodenal papilla adenoma | Thyroid disorders |
|---|---|---|---|---|---|---|---|
| Case 1 | Classic FAP with low‐grade dysplasia | 33 | p.Glu578Ter (c.1732G>T) | No | Low‐grade dysplasia | Low‐grade dysplasia | Multinodular goiter |
| Case 2 | Classic FAP with low‐grade dysplasia | 34 | Deletion exon 15 | Low‐grade dysplasia | Low‐grade dysplasia | Low‐grade dysplasia | Multinodular goiter |
| Case 3 | Classic FAP with low‐grade dysplasia | 17 | Deletion exon 15 | No | Low‐grade dysplasia | Low‐grade dysplasia | Normal |