Radiology Lecture Flashcards

1
Q

To evaluate the area where the humerus and glenoid make contact, an x-ray is taken with the patient ______________.

A

abducting their arm; this allows for evaluation of fractures of the glenoid

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2
Q

Images are often taken with the hand deviated in the ulnar direction to assess ______________.

A

scaphoid fracture

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3
Q

True or false: the metaphysis is the growth plate.

A

False.

The physis is the growth plate. The metaphysis is between the diaphysis and the physis.

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4
Q

Describe the naming system for fractures.

A

When describing a fracture, describe where the distal fragment is in relation to the proximal fragment. Imagine the patient in the anatomical position when doing so.

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5
Q

CT evaluations of bone are good at assessing _______________.

A

abnormalities of bony geometry

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6
Q

Ultrasound is great at _______________.

A

analyzing soft tissue near the surface of the skin (such as injury to the Achilles tendon)

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7
Q

Nuclear medicine specifically refers to ___________.

A

PET scans

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8
Q

_____________-type injuries can lead to fractures of the scaphoid.

A

FOOSH

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9
Q

What is the “classic” shoulder injury that occurs in seizures and electrocutions?

A

Posterior dislocation

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10
Q

Differentiate the terms displacement and angulation?

A

Displacement refers to a movement of bone that moves two pieces apart in space. Angulation refers to pieces that may be in contact but are angled out of their anatomic plane.

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11
Q

A boxer’s fracture is _______________.

A

a fracture of the distal tip of the fifth metacarpal

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12
Q

In response to supraphysiologic stress, the cortex of the bone ________________.

A

becomes more sclerotic; if the excess stress continues, then a stress fracture may develop (which can present as a transverse lucency in the cortex)

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13
Q

Describe the term osteoarthrosis.

A

Some specialists want to move away from the term osteoarthritis because that disorder is not an inflammatory disorder (like rheumatoid arthritis). As such, osteoarthrosis is their preferred term.

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14
Q

Psoriatic arthritis commonly affects which joint in the hand?

A

DIPs (like OA)

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15
Q

Osteophytes that connect two bones are called ____________.

A

syndesmophytes

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16
Q

_____________ suggests a non-aggressive bone lesion.

A

Well-defined margins (like a cyst)

17
Q

What are some radiographic features that are characteristic of malignant bone lesions?

A
  • Permeating destruction of bone
  • “Moth-eaten” appearance
  • Ill-defined borders