Lecture 14: Imaging Extremities Flashcards Preview

04. MSK Exam 2 Final > Lecture 14: Imaging Extremities > Flashcards

Flashcards in Lecture 14: Imaging Extremities Deck (20)
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1

What is brightened in a T1 image?

Fatty areas like the center of bones.

2

What is a SLAP tear?

 

What can cause one?

Superior (glenoid) Labrum Anterior Posterior tear.

 

Trauma or repetitive use (once again eg: a baseball pitcher)

3

What sign is shown here?

Sail Sign

4

What is the difference between intra- and extra- articular fractures of the ulna?

Intra-articular fracures involve the articulating surface of the ulna, extra-articular fractures do not.

5

The anterior talofibular ligament is represented here, with a normal image on the left.

 

What is your diagnosis of the image on the right?

Strained anterior talofibular ligament

6

The anterior talofibular ligament is represented here.

 

What is your diagnosis?

Full thicknes tear of the ATF ligament.

7

What are the A's in the ABC's of X-Rays?

Alignment

Adequacy

8

How would you diagnose this T2 MRI image?

SLAP tear

9

What do you call an abnormally large radiolucent sign on the anterior portion of the elbow?

 

What does it indicate?

A "Sail Sign"

 

In Adults: Radial fracture

In Children, Supracondylar fracture

 

(Sails are big ARCS, Adult Radial, Child Supracondylar)

10

What is the C of the ABC's of X-Rays?

Cartilage

11

Is the cortex of bone on a T2 MRI high intensity (white) or low intensity (dark grey / black)?

Low intensity.

12

What would lipping of the knee joint indicate?

Osteoarthritis

13

The anterior talofibular ligament is represented here.

 

What is your diagnosis?

Pseudo band formation at the ATF ligament

14

What is the B in the ABC's of X-Rays?

Bone Cortex

15

What ligament is tested with an anterior drawer test of the ankle?

Anterior talofibular ligament

16

What disease can lead to an idiopathic decrease in bloodflow to the head and neck of the femur?

Legg-Calve-Perthes

17

The anterior talofibular ligament is represented here.

 

What is your diagnosis for each?

Left: Low grade partial thickness tear of the ATF ligament

 

Right: High grade partial thickness tear of the ATF ligament

18

What can cause Hill Sachs deformity?

Repetitive anterior dislocation of the humerus. 50% to occur on the first dislocation, but becomes more likely as the humerus is dislocated more times

19

Are tendons high or low intensity in a T2 image?

Low intensity

20

How would you diagnose this image?

Hill-Sachs Deformity