histo

Question 1

Answer 1

esophageal squamous cell carcinoma- These cancers can be ulcerating and fungating lesions. They are usually located in the mid or proximal esophagus. They are not associated with Barrett’s esophagus

Question 2

Answer 2

esophageal adenocarcinoma- These are usually fungating, ulcerating masses that are found in the distal esophagus at the gastroesophageal junction. They are usually associated with Barrett’s esophagus and histologically are gland-forming tumors.

Question 3

Answer 3

areas of ulceration and multinucleated giant cells in herpetic esophagitis.

Question 4

Answer 4

normal esophageal motility study

Question 5

Answer 5

hirschsprung disease

Question 6

Answer 6

tumor invades through muscularis propria into subserosal fat- T3

Question 7

Answer 7

total colectomy from 18 yr old with FAP syndrome showing innumerable adenomatous polyps

Question 8

Answer 8

sessile serrated adenomatous polyp- notice the weird shape of the stalks

Question 9

Answer 9

adenomatous polyps- villous with high grade dysplasia

Question 10

Answer 10

adenomatous- villous

Question 11

Answer 11

adenomatous polyps- tubular adenoma

Question 12

Answer 12

hyperplastic polyps- low or non malignant potential look at the nice v shape of the stalks

Question 13

Answer 13

PSC-ECRP this disease is diagnosed by either MRCP or ERCP findings

Question 14

Answer 14

hereditary hemochromatosis

Question 15

Answer 15

alcoholic liver disease- notice the extensive mallory bodies

Question 16

Answer 16

cirrhosis-trichrome stain

Question 17

Answer 17

chronic viral hepatitis- notice the fibrosis around the bile triad and how it is spreading and to another triad

Question 18

Answer 18

lymphocytic microscopic colitis- notice the lymphocytes, there is a lot of them

Question 19

Answer 19

collagenous microscopic colitis- notice the thick collagen ban

Question 20

Answer 20

crohns- transmural inflammation and ulcer

Question 21

Answer 21

ulcerative colitis- notice that the inflammation is confined to the mucosa, there are crypt abscess and gland distortion

Question 22

Answer 22

ulcerrative colitis- mucosal layer affected only

Question 23

Answer 23

Crohns- notice the deep ulcerations

Question 24

Answer 24

celiac disease- villous atrophy, increased lymphocytes in intra-epithelial layers and lamina propria

Question 25

Answer 25

chronic pancreatitis

Question 26

Answer 26

acute pancreatitis CT scan

Question 27

Answer 27

chronic gastritis with intestinal metaplasia

Question 28

Answer 28

achalasia

Question 29

Answer 29

schatzki ring

Question 30

Answer 30

eosinophilic esophagitis

Question 31

Answer 31

Barrett's mucosa- specialized intestinal metaplasia wiht goblet cells and columnar cells

Question 32

Answer 32

carcinoid tumor of small bowel

Question 33

Answer 33

steatorrhea in chronic pancreatitis- Fat malabsorption in chronic pancreatitis is due to decreased secretion of lipase and colipase

Question 34

Answer 34

The diagnosis of chronic pancreatitis is difficult early in the disease as tests for pancreatic insufficiency are uncomfortable and difficult to obtain and imaging of the pancreas may not show definitive signs of calcifications and duct abnormalities

Question 35

Answer 35

Chronic pancreatitis slowly progresses. Over time the symptoms change from the early presentation with chronic abdominal pain to later signs of malabsorption and diabetes

Question 36

Answer 36

pathology of chronic pancreatitis- pancreatic duct is filled with a mucin plug and there are chronic inflammatory cells lymphocytes scattered in the duct and surrounding parenchyma

Question 37

Answer 37

Bisap score for the severity of acute pancreatitis

Question 38

Answer 38

This is a microscopic section of pancreas from a patient with acute interstitial pancreatitis. The pancreatic acinar architecture, best seen on the left half of the image, is preserved. Much of the right half of the slide shows saponified fat w

Question 39

Answer 39

gastric adenocarcinoma-signet ring cell type-linitis plastica

Question 40

Answer 40

gastric mass seen on plain chest-x-ray and ulcerated mass in stomach on endoscopy

Question 41

Answer 41

## Footnote upper endoscopy- mass in gastric antrum consistent with gastric adenocarcinoma

Question 42

Answer 42

peptic ulcer pathology- normal gastric epithelium on either side of disrupted epithelium with ulcer crater

Question 43

Answer 43

upper endoscopy- ulcer in duodenal bulb with visible vesse

Question 44

Answer 44

upper endoscopy- ulcers in duodenal bulb

Question 45

Answer 45

upper endoscopy- antrum with ulcers arrow on largest ulcer

Question 46

Answer 46

Atrophic gastritis. Normal gastric epithelial elements have been replaced by intestinal type epithelium in the center and upper right aspect of the image

Question 47

Answer 47

acute and chronic inflammation of H pyloric

Question 48

Answer 48

HP organisms brown stain in gastric pits

Question 49

Answer 49

Acute gastritis. The gastric mucosa is infiltrated by inflammatory cells, including a prominent number of neutrophils- Some of the neutrophils are present in