What is the most pertinent finding on this lateral lumbar spine radiograph, performed on a 75-year-old with back pain?

Subacute combined degeneration of the cord is due to deficiency of which vitamin?

Which tract(s) of the spinal cord are most commonly involved in subacute combined degeneration of the cord due to vitamin B12 deficiency?

Which of the following is NOT a RASopathy?

Acro-osteolysis is a feature of all of the following conditions EXCEPT...

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

A 25 year old female presents with enlarged cervical lymph nodes, subsequent CT confirmed calcified cervical lymphadenopathy as well as bilateral adrenal masses. What is the most likely underlying condition?

What structure is indicated by the arrow? 

Globally, approximately what percentage of patients with active tuberculosis are co-infected with HIV?

What is this appearance typical of?

Which spinal/paraspinal mass typically has a "target sign" appearance on MRI?

What is the diagnosis on this axial CT through the lumbar spine?

What condition does this individual most likely have? 

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

A 20 year old man presents to the trauma bay after rolling a dune buggy. He is intoxicated, limping, and he describes right foot pain. Where is the injury?

Which feature would be most helpful to distinguish chordoma from chondrosarcoma at the clivus?

What is the most common location of spondylodiscitis?

Which of the below is almost invariably present in association with a facet dislocation injury (both unilateral and bilateral)?

In a patient with low back / coccygeal pain, on standing and seated radiographs there is a 28° change in angulation of the coccyx. This measurement indicates the coccyx is:

With cervical spine flexion/extension views what amount (in mm) of intersegmental translational motion is considered grossly unstable?