Pyloric Atresia Quiz

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1. Type of pyloric atresia in which only the gastric mucosa is involved

a. Membranous complete atresia of the antrum or pylorus

b. Complete atresia with discontinuity with a fibrous cord between the separated segments

c. Solid pyloric atresia

d. Luminal atresia with a tiny pyloric canal (Stenosis)

e. All of the above

 

2. A third trimester ultrasound in pyloric atresia usually reveals the following except

a. An enlarged stomach

b. Gastric peristalsis

c. Polyhydramnios

d. Esophageal dilatation

e. Double bubble

 

3. Pyloric atresia

a. is the most common type of gastrointestinal atresia

b. occurs approximately in 1:10,000 births

c .is an autosomal dominant disorder

d. represents less than 1% of the gastrointestinal atresias

e. is a congenital gastric inlet obstruction

 

4. All of the following anomalies are associated with pyloric atresia, except:

a. Epidermolysis Bullosa

b. Down Syndrome

c. Esophageal atresia

d. Omphalocele

e. Aplasia cutis congenita

 

5. The prognosis for pyloric atresia

a. depends on the gestational age

b. depends on birth weight

c. depends on the presence or absence of epidermolysis bullosa

d. is usually good when it is an isolated anomaly

e. all of the above

 

6. The recurrence risk in a case of pyloric atresia is

a. 1:10 in isolated pyloric atresia

b. 1:4 in isolated pyloric atresia

c. 1:4 in subsequent siblings with epidermolysis bullosa letalis

d. 50%

e. less than 1%

 

7. The Syndrome which includes pyloric atresia and junction type of Epidermolysis bullosa is called:

a. Herlitz syndrome

b. Down syndrome

c. Werner syndrome

d. VATER syndrome

e. Watson-Alagille syndrome

 

8. All of the following are complications of pyloric atresia, except

a. Rupture of the stomach

b. Aspiration pneumonia

c. Prematurity

d. Hyaline membrane disease

e. Meconium peritonitis

 

9. The most common anomaly associated with pyloric atresia

a. Down Syndrome

b. Esophageal atresia

c. Epidermolysis Bullosa

d. Omphalocele

e. Aplasia cutis congenita

 

10. Which of the following is true about the pathogenesis of pyloric atresia

a. It is clear, as in the small bowel atresias

b. It is unknown

c. Vascular ischemia is mostly accepted in all cases

d. Vascular ischemia is totally accepted except in cases of abnormal position (as in a congenital diaphragmatic hernia)

e. Vascular ischemia is only present when associated to Epidermolysis bullosa

 


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