Lower Extremity Imaging Flashcards by Julia Moulton

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Q

What pathology is shown in this image?
What type of image is this?

A

Pes anserinus bursitis

MRI, T2 weighted (fluid is bright)

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Q

What type of image is this?

A

T1 weighted MRI

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Q

What artery would be most affected by fracture to the femoral head/neck?

A

Medial circumfrential artery

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Q

What artery would be most affected by an intertrochanteric fracture?

A

Lateral femoral circumflex artery

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Q

What pathology is shown in this image?

A

Early (right) and advanced avascular necrosis

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Q

What are the implications of femoral fracture location with regards to outcome and treatment?

A

The location affects whether blood supply was compromised and thus what type of repair is appropriate. If the blood supply was not irreversibly damaged, then it is possible to put in fixation to allow natural healing. If the blood supply is too severely damaged, full prosthetic replacement may be necessary.

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Q

What pathology is demonstrated in this image?

A

Torn ACL leads to knee instability –> tibia can slide forward

Q

These images show a normal […]

A

PCL

Q

This image shows a torn […]

A

PCL

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A

Q

What pathology is shown in the image on the left?

A

Patellar dislocation

Q

If you suspect that a person has a foreign body remaining in their body, what is the best type of imaging to use?

A

Ultrasound

Q

What pathology is shown in this image?

What type of image is this?

A

Retained foreign body with abscess around it (fluid, black surrounding object)

Ultrasound

Q

What pathology is shown in this image?

What type of image is this?

A

Retained foreign body (piece of glass)

Xray

Q

What pathology is shown in this image?

What type of image is this?

A

Fracture of both medial and lateral malleoli

XRay

Q

What is the longest muscle in the body?

A

Sartorius

Q

What is the longest tendon in the body?

A

Achilles

Q

What type of image is shown on the left?

On the right?

A

MRI, T1

MRI, T2

Q

What pathology is shown in this image?

What type of image is this?

A

Achilles tendon tear (pink arrows = healthy tendon, red bar = fluid showing tear)

Ultrasound

Q

What pathology is shown in this image?

What type of image is it?

A

Chronic tendinosis, demonstrated at white arrow as thickening of the tendon from swelling/scarring

T2 MRI