GI TRACT Flashcards
is US modality of choice for GI
nope
what probe do we use for GI
high freq linear probe (still need to apply pressure to distend bowel
normal thickness of gastric wall
2.5-3.5mm
does water change wall thickening
no
gastric wall thickening can be caused by (3)
Gastritis
Gastric Ulcer
Lymphoid hyperplasia
what is Hypertrophic Pyloric Stenosis
Abnormal thickening of the antropyloric region of the stomach
Hypertrophic Pyloric Stenosis mainly affects
first-born male infants
clinical presentation of Hypertrophic Pyloric Stenosis (4)
Dehydration
Frequent episodes of projectile nonbilious vomiting
Failure to thrive
Thickening palpated as the “olive-shaped” epigastric mass.
Hypertrophic Pyloric Stenosis sono (its a fucking paragraph)
We can visualize
pyloric muscle
lack of passage of fluid through pylorus
stomach is often filled with water even with fasting
The trv plane demonstrates the long axis of the pylorus
The sag plan demonstrates the transverse axis of the pylorus
If the pylorus is not visualized, give the child water to display gastric lumen
Thick displaced pylorus is medial to GB.
2 main sign of Hypertrophic Pyloric Stenosis
doughnut sign
An anechoic/hypoechoic muscle mass with a central echogenic lumen
string sign (barium)
3 Small Bowel abnormalities
Bowel obstruction
Meconim ileus
Midgut malrotation
4 intrinsic causes of bowel obstruction
Duodenal Atresia (assoc. w. Trisomy 21)
Duodenal Stenosis
Duodenal Web
Jejunal and ileal atresia
4 extrinsic causes of bowel obstruction
Malrotation
Choledochal Cyst
Duodenal duplication cyst
Annular Pancreas
SONO of Bowel obstruction (3)
hyperactive, dilated bowel loops
bowel wall thickening in some cases
duoden. & stomach seen as large anechoic structures
what is Meconium ileus
Abnormally thick meconium in the distal small bowel