Differential Diagnosis- Exam 1- Low Back Pain Notes- Clicker questions

Osteoid osteoma

What is the suspected Dx

Fluid fluid level

What do you see on MRI with ABC

Increased vertical trabeculation

Multiple levels of facet arthrosis, DDD and degenerative spondyloisthesis at L4, L5

Findings

Cannot be lytic Mets cause it's bright on T1, lytic Mets would be dark

Is this lytic Mets

A lot of DDD

Accentuated trabeculation and increased size of vertebral body= PAGETS

Most likely an ABC or osteoblastoma (most likely ABC cause it's expansile)

Also has fluid fluid level on MRI

S1

Which nerve root is being affected

Incomplete sacralization of L5

-didn't fully sacralize so that's why its incomplete

Most significant diagnosis

Incomplete lumbarization of S1

-looks like 6 lumbars

Yes, multiple new compression fractures

Based on the radiographs does this person need to see an orthopedist

Hyperparathyroidism

-cause of rugger jersey sign

Modic type II

-bright bright

Modic Type ?

Modic type II represents fatty infiltrate related to DDD

What does Modic Type II represent

Modic Type I

-dark bright

Modic type ?

Represents bone marrow edema related to DDD

What does Modic Type I represent