Paeds

Question 1

Which tract is thought to be disrupted in cerebellar mutism syndrome

Answer 1

Dentate-rubro-thalamic tract.

Causes cerebellar-cerebral diaschisis

Question 2

What is the function of median prosencephalic vein of Markowski

Answer 2

Regresses to become the internal cerebral veins.
Drains choroid plexus in 5-10th week of fetal life.
Vein regresses, and ICV takes over as thalami develops

Question 3

Features to suggest good candidate for SDR

Answer 3

Prematurity
Low birth weight
Late acquisition of motor milestones, however progress is being made
Absence of previous surgical interventions
Absent of other movement disorders
Absence of family history involving neurological diseases
Good collaboration with therapists.

Question 4

Contraindications for SDR

Answer 4

Scoliosis
Multiple orthopaedic operations
Poor baseline, no significant mobility
Cognitive difficulties, or not collaborating with therapists
Choreathetosis or other movement disorders
Double hemiplegia

Question 5

Radiological features of chiari 2

Answer 5

3 supratentorial
Corpus callosum agenesis
Large massa intermedia
Tectal beaking (enlargement of inferior colliculus)
CMT

3 infratentorial:
Low lying tonsils and medulla
Low lying transverse sinus
Small post fossa
Fourth ventricle low lying

Question 6

Lemon and banana sign of Spina bifida

Answer 6

Lemon: frontal bone scalloping, because chiari

Banana: flattened cerebellum looks like a banana

Question 7

Cephalic index

Answer 7

Width/Length of head

75 to 80 is normal.

<75 is scaphocephaly/dolicocephaly
>80 is brachiocephaly