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Fundamentals of Imaging > Face and Skull Fracture > Flashcards

Face and Skull Fracture Flashcards

1
Q

T/F: Conventional radiography for the evaluation of head injury has become practically obsolete

A

True

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2
Q

What consists of 80% of skull fractures Identified as radiolucent line that unlike vascular grooves tends to cross sutures?

A

Linear skull Fractures

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3
Q

Where are Linear Skull fractures most commonly found in?

A

Parietal and Temporal bones

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4
Q

What kind of skull fracture results when Bones are directly pushed into the underlying meninges and often brain parenchyma and almost always in cranial vault bones due to high energy impact?

A

Depressed skull fracture

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5
Q

What kind of fracture is a depressed skull fracture?

A

Open fracture

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6
Q

What is the best imaging to diagnose Depressed skull fracture?

A

CT

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7
Q

What kind of fracture may be seen in new born infants as an inward buckling of the calvaria without osseous fragments and also seen as a continuous smooth inward indentation of the skull calvaria?

A

Ping-Pong Fracture

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8
Q

How large is a sutural diastasis at birth?

A

> 1cm

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9
Q

How large is a sutural diastasis at age 2?

A

> 3mm

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10
Q

How large is a sutural diastasis at age 3?

A

> 2mm

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11
Q

T/F: Radiographic signs of basilar fracture can be very subtle or not seen at all

A

True

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12
Q

What part of the skull are basilar fractures most commonly seen in?

A

Sphenoid and temporal bones

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13
Q

What is the key clinical sign for Basilar fracture?

A

Battle sign and Raccoon eyes

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14
Q

What is the best imaging for Basilar skull fracture?

A

CT

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15
Q

What radiographic shape does an epidural hematoma partake?

A

Lentiform shaped

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16
Q

What radiographic shape does a subdural hematoma partake?

A

Crescent shaped

17
Q

What Develops due to a meningeal tear and interposition of the leptomeninges and CSF with or w/o cerebral parenchyma?

A

Leptomeningeal cyst (growing fracture)

18
Q

What is the most common facial bone fracture?

A

Nasal fracture

19
Q

What is the best imaging to diagnose nasal fractures?

A

CT

20
Q

What is the result of sudden impact to the globe? And where is the most common site?

A

Blow-out fracture

Inferior orbit

21
Q

What kind of fracture is a form of a blow-out fracture that causes the Inferior rectus to be trapped?

A

Trapped-door fracture

22
Q

50% of Blow-out fractures involve what?

A

Medial wall

23
Q

What view may show opacification of the maxillary sinus from a blow-out fracture?

A

Water’s skull

24
Q

What is the best imaging modality for diagnosing Blow-out fractures?

A

CT

25
Q

What is the 2nd most common facial fracture (40% of mid-face fractures)?

A

Tripod fracture

26
Q

What is the most common mechanism of tripod fractures?

A

Blow to the malar region of the face

27
Q

Where are the fractures specifically seen to make it a tripod fracture?

A

1) zygomatic arch
2) orbital process of zygomatic bone and superior-lateral maxillary sinus wall
3) maxillary process of zygomatic bone

28
Q

Where does the fracture have to be in order to conclude it is a LeFort fracture?

A

Pterygoid plate

29
Q

What type of LeFort fracture involves horizontal maxillary fracture producing separation of the upper teeth from the face?

A

LeFort 1

30
Q

What type of LeFort fracture involves pyramidal-shaped fracture with the upper teeth at the base and the nasal-frontal suture at the apex?

A

LeFort 2

31
Q

What type of LeFort fracture involves cranial-facial separation?

A

LeFort 3

32
Q

What is a common facial fracture that is a result from assault?

A

Mandibular fracture

33
Q

T/F: Most mandibular fractures seem to be unilateral (>45%)

A

True

34
Q

What is the most common location of mandibular fractures?

A

Manibular condyle

Fundamentals of Imaging (16 decks)

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