Mehl. GI. Pyloric sten., duodenal atres., annular pancreas 01-02 (1)

Question 1

pyloric stenosis. what CP main?

Answer 1

forceful/projectile NON-bilious vomiting

Question 2

pyloric stenosis. age?

Answer 2

neonates days to weeks

Question 3

pyloric stenosis. why no bile?

Answer 3

obstruction is above level of duodenum, so we wont see bile

Question 4

pyloric stenosis. usmle actully dont give a fuck about age and can give any. so do not fix on it.

Answer 4

.

Question 5

pyloric stenosis. what is buzzy definition?

Answer 5

Hyperthrophic pylorus; olive-shape mass in abdomen

Question 6

pyloric stenosis. what is used to Dx?

Answer 6

ULTRASOUND

Question 7

pyloric stenosis. Tx?

Answer 7

myotomy to treat

Question 8

pyloric stenosis. usmle wants you to know, that it is almost always one off/ sporadic developmental defect, where the neonate will not have a broader syndrome.

Answer 8

VS duodenal atresia, which is present in Down syndrome

Question 9

Duodenal atresia. main CP?

Answer 9

BILIOUS vomiting

Question 10

Duodenal atresia. why bilious?

Answer 10

because obstruction at level of duodenum ow lower

Question 11

Duodenal atresia. assoc with what?

Answer 11

Down syndrome, albeit not mandatory

Question 12

Duodenal atresia. what is seen on xray?

Answer 12

double-bubble sign

Question 13

Annular pancreas. definition?

Answer 13

another cause of duodenal obstruction with double-bubble sign, but much more rare than duodenal atresia