Gastric 4

Question 0

What is intussusception?

Answer 0

Telescoping of bowl into itself.

Presents in children who are eating for the first time (increased peristalsis)
Sausaged shape mass in abdomen.
Current jelly stool.

Question 1

What is difference between constipation and obstrication?

Answer 1

Obstrication, you can’t pass feces or gas.

Constipation you can pass gas.

Question 2

Dermatitis herpetiformis associated with what malabsorption syndrome?

Answer 2

Celiac spru, due to forming of IgA

Question 3

What is a pseudopolyp?

Answer 3

Found in Ulcerative Colitis.
A true polyp is growing above epithelial layer. A pseudopolyp is growing on top of the mucosa that is above the epithelium.

Question 4

Extraintestinal assocation seen with Ulcerative Colitis

Answer 4

Ankylosing spondylitis (spinal joint disease)
genetic assocation: HLA-B27***

Question 5

Ischemic bowl disease (a thrombus causing hemorrhagic infarct of bowl) typically happens in what part of bowl?

Answer 5

Watershed areas: ie splenic flexure

Question 6

Angiodysplasia
What is it?
Where?
Association?

Answer 6

Malformation of blood supply in intestines.
Most common in right colon (cecum) because it has the most surface area.
Assocation with CREST syndromes.

Question 7

Diagnostic tool for pseudomembranous colitis

Answer 7

Clostridium difficile does not grow well in media (stool or blood culture).
Must detect toxin in the stool.

Question 8

Meckel diverticulum rule of 2s

Answer 8

Diverticulum is a outpouching of structure.
2% feet from ileocecal valve
2cm in length
2yrs old or younger
2% of population
2% of carcinoid tumors occur in Meckel diverticulum

Question 9

Tubular vs Villous adenomas

Which has higher likelihood of becoming cancer?

Answer 9

Villous

Because it has more dysplasia and larger

Question 10

Peutz-Jeghers syndrome

Cancer assocation

Answer 10

It is autosomal dominant, multiple hamartomatous polyps in small intestines NOT ASSOCIATED with intestinal polyps, but it is associated with lung, pancreatic, breast, and uterus cancers.

Question 11

Carcinoid syndrome most important indicator

Answer 11

Flushing of the face
along with:
diarrhea
bronchospasm/wheezing
fibrosis

Question 12

Which has worse prognosis? Pancreatic carcinoma in head or body/tail of pancrease?

Answer 12

Body/Tail has worse prognosis because it is asymptomatic. Head will cause jaundice and increased conj. bilirubin and alk phos

Question 13

Pancreatic Carcinoma is what type of cancer? Arises from what tissue?

Answer 13

Adenocarcinoma arising from duct epithelium

60% from head of pancreas

Question 14

Islet cell tumors cause what symptoms?

Answer 14

Insulinoma (b-cell tumor) produces insulin causing hypoglycemia, sweating, hunger, confusion, insulin coma