OST Module 6

Question 1

CADASIL

Answer 1

Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy:

Small vessel disease in young adults.
Subcortical lacunar infarcts and leukoencephalopathy in young people

Question 2

Japanese encephalitis vs HSV encephalitis

Answer 2

Japanese encephalitis involves the basal ganglia

Question 3

Solid pilocytic astrocytoma

Answer 3

Arise peripherally within the posterior fossa and displace the 4th ventricle.

Question 4

Facial nerve injury with temporal bone fractures

Answer 4

More likely in transverse fractures.
More likely in labyrynthine segment of facial nerve

Question 5

Wilson’s disease

Answer 5

High T2 in tegmentum and low in superior colliculus (panda face sign on axial)

Question 6

SDH vs EDH

Answer 6

SDH crosses sutures, EDH crosses midline

Question 7

Cerebral SLE

Answer 7

White matter hyperintensities and focal infarcts, with established neuropsych symptoms in woman of childbearing age

Question 8

Alzheimers PET

Answer 8

Reduced activity in the precuneus/posterior cingulate gyrus and superior, middle and inferior temporal love gyrus.

Question 9

Jugulodigastric node level

Answer 9

Level 2

Question 10

Anteromedial displacement of parapharyngeal space

Answer 10

Parotid space mass

Question 11

Intradural and extramedullary tumour with calcium

Answer 11

Meningioma

Question 12

Least useful sequence to look for vertebral mets

Answer 12

T2

Question 13

Most associated feature with SAH

Answer 13

Associated with vomiting

Question 14

Perimesencephalic SAH Ix

Answer 14

Catheter angio if CT negative