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63 Cards in this Set

  • Front
  • Back
Esophageal atresia occurs most commonly at or near the
Tracheal Bifurcation
Esophageal atresia is most commonly associated with a
Fistula

connecting the upper or lower esophageal pouches to a bronchus or trachea
Stenosis can involve any part of the GI tract but most commonly involves the ____ or ____ ______
Small intestine, esophagus
Occurs when closure of the abdominal musculature is incomplete
Omphalocele
an omphalocele that involves all of the layers of the abdominal wall
Gastroschisis
The most frequent site of ectopic gastric mucosa, where it is referred to as an ____ patch
The upper third of the esophagus

Inlet Patch
Small patches of ectopic gastric mucosa in the small bowel or colon
Gastric Heterotopia, may pressent with occult blood loss due to peptic ulceration of adjacent mucosa
Where does Meckel Diverticulum occur
In the ileum

Age of onset 2
present within 2 feet of ileocecal valve
2 inches long
This presents in the second or third week of life as new onest regurg. and persistent projectile nonbilous vomiting
Congenital hypertrophic pyloric stenosis
This dx, also known as congenital aganglionic megacolon, is when a distal intestinal segment lacks both neural plexus's
Hirschsprung Disease
Hirschsprung is due to heterozygous loss of function mutations in what receptor in most familial cases
tyrosine kinase RET
The ____ is always affected in hirschsprung and causes proximal dilation (megacolon)
Rectum
Outer long. layer of esophagus contracts before the inner circular layer causes
Nutcracker esophagus
This diverticulum occurs immediately above the upper esophageal sphinctor
Zenker
This divert. occurs at midpoint esophagus
Traction
This divert occurs immediately above the lower esoph. sphinctor
Epiphrenic
Person with progressive dysphagia presents. They have had chronic GERD whats your dx
Esophageal Stenosis
Uncommon ledge like protrusions of mucosa that may cause obstruction. They are most common where?
esophageal mucosal webs, upper esophagus
When in the distal (upper) esophagus, esophageal rings are termed __ rings and are covered by squamous mucosa
A
Esophageal rings at squamo-columnar junction of lower esophagus are termed
B rings
Longitud. tears in esoph. near the gastroesoph. junction. Most often assoc. with retching and vomiting secondary to getting wasted
Mallory-Weiss tears

accounts for 10% of cases of upper GI bleeding/hematemesis
Candidasis infection of esoph. shows what histolog.
Pseudomembranes
Esophagitis that cant be treated with a proton pump inhibitor signifies
eosinophilic esophagitis
Intestinal metaplasia within the esophageal squamous mucosa
Barrett esophagus
Diseases that impede portal blood flow causing portal hypertension can cause these
esophageal varices
This esophageal tumor typically arises in the background of barrett esophagus
Adenocarcinoma
Use of alcohol and tobacco increases risk of this esophageal cancer
Squamous cell carcinoma
These tumors of smooth muscle origin are most common "uncommon" esophageal tumors
Leiomyomas
Sessile lesions with a central core of connective tissue and a hyperplastic pappiliform often associated with HPV
Squamous papilloma
Ulcers occuring in proximal duodenum associated with severe burns or trauma
Curling ulsers
Ulcers arising in people with intracranial disease
Cushing ulcers - caused by direct stim. of vagal nuclei
Most common cause of chronic gastritis
H. Pylori
Most common cause of atrophic gastritis
Autoimmune gastritis
H. pylori infection is most commonly found near the ____
antrum
Four things attribute to h. pylori virulence
1. Flagella
2. Urease
3. Adhesins
4. Toxins
H. pylori are usually never found in ____ areas
Acidic - esp. the oxyntic cells
What is the major difference b/w autoimmune and h. pylori?
Autoimmune causes increased Gastrin release and defective gastric acid secretion

Also it produces antibodies to intrinsic factor leading to pernicious anemia
Autoimmune gastritis is characterized by damage of the ____ mucosa
Oxyntic
Gastric antral trauma induces this grossly characteristic lesion
GAVE gastric antral vascular ectasia "aka watermelon stomach"
Char. by gastric tissue damage with high levels of eosinophils
Eosinophilic gastritis
Are peptic ulcers more common in stomach or duodenum
duodenum
The risk of adenocarcinoma is greatest in
autoimmune gastritis
Exuberant reactive epithelial proliferation associated with entrapment of epithelial lined cysts
Gastritis cystica
Hyperplasia of foveolar cells of body and fundus
Mentrier disease
Menetrier disease is caused by excessive secretion of ____
TGF-alpha
This syndrome shows a fivefold increase in the number of parietal cells and is caused by gastrin secreting tumors
Zollinger ellison syndrome
Risk of dysplasia of polyps correlates with their ___
size
Over 90% of all gastric cancers are
Adenocarcinoma (cancer originating in glandular tissue
While overall incidence of gast. adenocarc. is falling, cancer of the ___ ____ is on the rise
Gastric cardia
____ ring morphology seen in adenocarcinoma
Signet
Two places gastric cancer can metastasize are Virchow's Node and Sister Mary Joseph Nodule which are where respectivelt
Virchows - supraclavicular
Sister mary- subcutaneous nodule
MALToma (mucosa associated lymphoid tissue) is highly linked with _________
H. pylori
MALToma cells can accumulate large amounts of pale cytoplasm referred to as _____ change
monocytoid
More than 40% of carcinoid tumors are found in the
Small intestine
The most important prognostic feature of carcinoid GI tumors is
location
Carcinoid tumors in the ____ rarely metastasize and are generally cured by resection
Foregut

(stomach duodenum)
Carcinoid tumors in the _____ are aggressive
Midgut


(Jejunum, ileum)
Almost all carcinoids found here are benign
Hindgut

appendix
Most common mesenchymal tumor of the abdomen
GI stromal tumor (GIST)
GIST is seen in "Carney Triad" in young women with what other two things
Paraganglioma and pulmonary chondroma
About 80% of all GISTs have gain of function mutations of the gene encoding the ___
tyrosine kinase c-KIT (the receptor for stem cell factor)
GISTs composed of thin elongated cells are classified as
Spindle cell type
GISTs dominated by epitelial appearing cells are termed
Epitheloid type