- Chordoma:
Your answer:
Is most common in the cervical region.
Females are affected more commonly than males.
Metastases do not occur.
May calcify.
Are highly radioresponsive.
- In normal maturation of white and grey matter:
Your answer:
CT is the imaging method of choice in assessing brain maturation.
Mature myelin is of high signal intensity on T1 weighting.
The corpus callosum myelinates from front to back.
Myelination is incomplete by the age of 2 years.
Grey matter is of increased vascularity when compared to white matter.
- The following statements IS FALSE regarding the Arnold-Chiari malformations:
Your answer:
In Type I malformation the severity of clinical symptoms correlates well with the degree of tonsillar descent.
Those with Type II malformation invariably have an associated myelomeningocoele.
May be associated with hydrocephalus.
Diagnosis depends on hypoplasia of the cerebellar vermis to be present.
Mega cisterna magna is an uncommon feature.
- Eosinophilic granuloma:
Your answer:
Is commonest in 1-3 year olds
Monostotic is more common than polyostotic disease.
Cannot cause `honeycomb lung`.
Radiological skeletal changes are predominantly sclerotic.
Is a cause of anterior scalloping of vertebral bodies.
- Bronchopulmonary sequestration: WHICH OF THE FOLLOWING IS FALSE???
Your answer:
Is more common on the left.
May communicate with the oesophagus.
Intralobar is more common than extralobar sequestration.
Is more common in females.
May show multiple, fluid-filled cystic spaces on CT.