Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

Sessile Polyp (Adenocarcinoma)

Pedunculated Polyp (Adenocarcinoma)

Inflammatory Pseudopolyps in Ulcerative Colitis

Inflammatory Polyp (prolapse type)

Juvenile Polyps

Juvenile Polyps

Peutz-Jeghers Syndrome, hamartomatous polyp of the small bowel pretty normal gland, just malformed, are not dysplastic

Small Intestinal PJ Hamartomatous Polyp
small bowel, looks almost like normal mucosa, just disorganized

Colonic PJ Hamartomatous Polyp

Mucosal "freckles" in PJ syndrome

Colonic Hyperplastic polyp
no malignant potential
happens anywhere in the colon
serrated architecture of the glands, smooth out at bottom of the crypt
cross-section looks kind of like a star

Sessile Serrated Adenoma
usually right colon
usually >1 cm
dilated crypts

Tubular adenoma

Tubular Adenoma (TA)
looks like low grade dysplasia in ulcerative colitis
- stratification of nuclei
- bluer than normal
- darker than normal
- regular-shaped glands
- not complex back-to-back glands as seen in high-grade dysplasia

Villous Adenoma

Villous Adenoma

Tubulovillous Adenoma

High Grade Dysplasia

Carcinoma of Cecum
colonic adenocarcinoma right side cancer in cecum fecal flow could still go sometimes do not present until very late

Rectosigmoid adenocarcino
colonic adenocarcinoma
left side rectosigmoid cancer stenosing
tend to cause symptoms, maybe even obstruction at an earlier stage

Moderately Differentiated Adenoma
colon cancer
- complex glands
- columnar cells
- debris in center
- fibrotic and pink dysplasic stroma good evidence for invasion
of carcinoma

Dirty Necrosis in AdenoCa

Poorly diff Adenocarcinoma

Mucinous Adenocarcinoma
- light-coloured mucin
- islands of epithelium floating in the mucin
- in the colon mucinous adenocarcinoma has worst prognosis

Metastatic Carcinoid in Liver

intestinal carcinoid

Gastrointestinal Stromal Tumors (GIST) of the Intestine

Gastrointestinal Stromal Tumors (GIST) of the Intestine

appendiceal carcinoid

appendiceal carcinoid

mucinous cystadenoma

mucinous cystadenoma

Pseudomyxoma Peritonei
If gallons of mucin are seen, look for appendix, that's probably where it's coming from

Pseudomyxoma Peritonei
specimen of blood mucin

Implants from Mucinous Cystadenocarcinoma
malignant if there are islands of epithelial cells within mucin

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording