Hemartomatous polyps (Juvenile ´polyps)

Question 1

Juvenile polyps, genes involved and pathway of participation

Answer 1

SMAD4 and BMPR1A
TGF-beta pathway

Question 1

Juvenile polyps, layers involved.

Answer 1

Epithelium and lamina propia

Question 2

Characteristic of the different types of Juvenile polyps

Answer 2

Syndromic = dysplasia
Sporadic = NO dysplasia

Question 3

Juvenile polyps, common population

Answer 3

Children < 5y

Question 4

Juvenile polyps, common locations and complications

Answer 4

Rectum (bleeding due to surface erosion)

Question 5

Juvenile polyps quantity

Answer 5

Usually solitary

Question 6

Juvenile polyps, extraintestinal complication

Answer 6

Pulmonary arteriovenous malformation

Question 7

Juvenile polyps, common diameter

Answer 7

< 3 cm

Question 8

Juvenile polyps, common morphologic characteristics

Answer 8

Pedunculated
Cysts filled with mucin and inflammatory debris