According to the Anderson and D'Alonzo classification, which type of odontoid fracture is seen on this PEG view?

What are the two most common intradural extramedullary tumors in adults?

What WHO grade are pilocytic astrocytomas?

What is the mechanism of a burst fracture? 

Burst fractures occur most commonly at which level? 

What line is the default axial plane for MRI of the brain?

Regarding unilateral facet joint dislocations, which is true? 

A 12-year-old boy presents with reduced visual acuity and during workup has an MRI. The right optic nerve is expanded all the way back to the chiasm which is also enlarged. Given the likely diagnosis, what is the most likely underlying condition?

Which of the following movements is minimally permitted at the atlanto-occipital joint?

A patient presents with a week of progressive upper followed by lower limb neurological symptoms. MRI reveals a longitudinally extensive T2 hyperintense cord lesion between the C6 and T5 levels, with a few scattered focal relative hyperintensities within the abnormal region at the T1 level. The most likely cause is...

The two osseous projections arising from the posterior surface of the first coccygeal segment (Cx1), which may be fused with the sacrum, are called:

Which is the most commonly fractured sesamoid bone?

A young adult male athlete presents with a few weeks of forefoot pain and a foot radiograph was obtained. What is the most likely diagnosis? 

What is the anti-GQ1b antibody syndrome?

A 40-year-old female is investigated with an MRI brain for headaches. Bilateral thin subdural fluid collections isointense to CSF, smooth pachymeningeal enhancement and distension of the dural venous sinuses is observed. Which is the most likely diagnosis?

In the presence of any destructive monoarthropathy, what diagnosis must be excluded?

The following are causes of unilateral distal clavicular osteolysis EXCEPT...

A 35-year-old woman with a lengthy history of headaches has no significant prior medical history. She is investigated with an MRI of the brain. What is the most likely cause of her headaches?

Which of the following lines or thicknesses is abnormal on this radiograph?

Which best describes a hangman fracture?