Table 1.

Phenotypic features of 82 patients

Type of Adenomas		CRC		Family history
Patients with multiple ≥ 10) polyps synchronous	Patients with multiple (≥ 10) polyps metachronous	Yes	No	Yes	No
23.2% 19/82	76.8% 63/82	48.8% 40/82	51.2% 42/82	34.1% 28/82	65.9% 54/82
Mean age at presentation 63.7 years	Mean age at presentation 61.0 years	Mean age at presentation 57.1 years