Neoplastic polyps (adenomas)

Question 1

Neoplastic polyps, most common type

Answer 1

Colonic adenoma

Question 2

Colonic adenoma may cause…

Answer 2

colorectal adenocarcinoma

Question 3

Colorectal adenoma, diameter

Answer 3

0.3 - 10 cm

Question 4

Colorectal adenomas, characteristics about structure

Answer 4

Can be pedunculated or sessile
Raspberry texture

Question 5

Types of adenomas

Answer 5

Tubular
Villous
Tubulovillous

Question 6

Characteristics of tubular adenomas

Answer 6

Small
Pedunculated

Question 7

Characteristics of villous adenomas

Answer 7

Larger
Sessile

Question 8

Sessie serrated lessions, common location, dysplasia? and portion of the crypt serrated

Answer 8

Right colon
NO dysplasia
Whole crypt with a serrated pattern

Question 9

When an intramucosal carcinoma can occur

Answer 9

Dysplastic epithelial cells irrupt into the lamina propria through the basement membrane

Question 10

Intramucosal carcinomas have little or no metastatic pootential, why?

Answer 10

Absence of functional lymphatic channels in the colonic mucosa

Question 11

What is neccesary for a intramucosal carcinoma to increase the potential metastasis?

Answer 11

Invade through the muscularis mucosae