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Flashcards in Midterm review Deck (28):
1

The conus medullaris is located at the approximately at the level of

L1-L2

2

Early in development, the brain segments into 3 primary vesicles

prosencephalon, mesencephalon, rhombencephalon

3

Extrahepatic obstruction in the neonate includes all except:
a. choledochal cyst
b. biliary atresia
c. hepatitis
d. spontaneous perforation of the bile ducts

Hepatitis

4

What are common clinical findings in a patient with appendicitis?

RLQ pain, fever, nausea

5

What percentage of premature infants may have intracranial hemorrhage?

40%

6

True or false:
The cisterna magna gradually decreases with gestational age

False

7

What pitfalls should be avoided when determining lateral ventricular size? (2)

Developing fetal cortical mantel,
Echogenic subarachnoid space

8

What term is used for any cavitation or CSF- filled cyst in the brain?

Porencephaly

9

Define the measurement used to determine whether appendicitis is present

an outer diameter greater than 6mm with compression

10

What is the most common age and gender for pyloric stenosis to occur?

Male, age 3 to 6 weeks

11

What is the "pseudokidney" or "sandwich" sign?

sonographic finding in a patient with intussusception

12

The lateral ventricles drain into the 3rd ventricle via what structure?

Foramen of Monroe

13

Name the fontanelle through which the neonatal brain may be scanned in the coronal plane.

Anterior fontanelle

14

In the pediatric US examination of the abdomen, all of the following are true except:
a. the right hepatic lobe should not extend more than 1cm below the xiphoid process
b. the common bile duct should measure less the 2mm in infants up to 1 year of age
c. the length of the gallbladder should not exceed the length of the kidney
d. the texture of the pancreas is hypoechoic, when compared to the liver

The right hepatic lobe should not extend more than 1cm below the xiphoid process

15

Which two complications are seen in patients with periventricular leukomalacia?

Anomalous myelination of the immature brain,
abnormal neurological development

16

What connects the third and fourth ventricles?

acqueduct of Sylvius

17

The most inferior portion of the spinal cord, located at- level of L1-L2, is called the

conus medullaris

18

Agenesis of the corpus callosum may indicate what malformation?

Arnold-Chiari malformation

19

What is the function of the hippocampus?

Memory

20

The CSF circulated between the

pia matter and arachnoid

21

What is the most common site for a choroid plexus hemmorrhage?

Occipital horn

22

What soft tissue mass is seen to form a bridge of gray matter across the 3rd ventricle when it is abnormal?

Massa intermedia

23

A subependymal hemorrhage is found at what site?

Thalamic-caudate groove (also called caudo-thalamate groove in some books)

24

Which phrase describes intussusception in the infant?

occurs when bowel prolapses into more distal bowel and is propelled in an antegrade fashion

25

What clinical criterion is used to determine if an infant may have pyloric stenosis?

Projectile vomiting

26

In gastroschisis, the defect in the abdominal wall

is in the lateral abdomen

27

In ectopia cardis, the following defect is present


a sternal cleft

28

Which abnormality is most likely to be seen in the male infant?

pyloric stenosis