Peds neuro Flashcards
1
Q
Corpus callosum:
- The CC begins development at which age?
- The major components of the CC are present by which age?
- CNS myelination is typically complete by what age?
- Which abnormalities are shown below?
- Based on these findings, what is the DDx?

A
- 8th week gestation.
- 17th week.
- 2 yrs.
- Absence of the CC and septum pellucindum, colpocelphaly (dilated ventricles) and parallel lateral vents.
- DDx:
- chromosomal abnormality,
- Chiari malformations
- cerebral palsy
- prenatal teratogen exposure
- metabolic syndrome

2
Q
The most common neck mass in infancy?
A
Fibromatosis colli.

3
Q
The most common masticator space mass in a kid?
A
rhabdomyosarcoma

4
Q
The most common extra-orbital malignancy in kids?
A
rhabdomyosarcoma

5
Q
The most common benign orbital mass in a kid?
A
dermoid

6
Q
In schizencephaly, the abnormal cerebral cleft is lined by which substance?
A
Dysplastic gray matter.

7
Q
The most common complication of sinusitis?
A
orbital cellulitis

8
Q
3 findings required to diagnose classic Dandy-Walker malformation?
A
- Enlarged posterior fossa w/upward displacement of the tentorium.
- Severe vermian (vermis) hypoplasia or agenesis.
- Cystic dilation of the 4th vent.
- If you do not see all 3 findings then it is a Dandy Walker variant.

9
Q
The most common primary brain tumour in kids?
A
juvenile pilocytic astrocytoma
- low grade (WHO grade 1)
- cerebellum is the most common site of origin (60%)
- optic chiasm is the next-most
- classic look: cystic mass w/enhancing mural nodule

10
Q
- What does CHARGE stand for?
- With what head/neck pathology is this often associated?
A
- CHARGE:
- coloboma
- heart defect
- atresia-choanal
- retarded growth
- GU abnormalities
- ear abnormalities
- choanal atresia

11
Q
- Name the TORCH infections.
- Which one is most common?
- Typical intracranial findings with CMV, but any TORCH infections?
A
- Toxoplasmosis, HIV, rubella, CMV, HSV.
- CMV; affects 1% of all newborns.
- Microcephaly, periventricular calcs, mineralized basal ganglia.

12
Q
Dx, 15yo female w/headaches & vomiting.

A
Pineoblastoma: pineal region mass that is mixed cystic & solid & iso to gray matter.