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NYCC Bone & Joint > Cervical Variants > Flashcards

Cervical Variants Flashcards

1
Q

What is mach effect?

A

unfortunate confluence of shadows
(not a Dx)

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2
Q

What is a pseudo-Jefferson fracture?

A

overhanging edges of C1 lateral masses in children only, representing the differential growth rate between C1 and C2
(finding in adults = jefferson Fx)

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3
Q

What is the clinical presentation of a patient showing a pseudo-jefferson fracture on x-ray?

A

child with no history of trauma

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4
Q

What is the diagnosis?

A

Pseudo-Jefferson fracture

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5
Q

What is the diagnosis and clinical significance?

A

Calcified lymph nodes
No clinical significance

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6
Q

What is the diagnosis?

A

Calcified lymph nodes

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7
Q

What is Eagle syndrome?

A

ossification of stylohyoid ligament + mechanical dysphagia (difficulty swallowing solids)

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8
Q

What is the clinical significance of stylohyoid ligament ossification?

A
  • vertebral artery insufficiency
  • fracture (flex/ext MOI)
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9
Q

What is the arrow pointing to?

A

Central incisor gap (Mach effect, not Dx)

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10
Q

What is the diagnosis?

A

Ossification of stylohyoid ligament

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11
Q

What is the diagnosis?

A

Pseudosubluxation of C2

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12
Q

What is the diagnosis?

A

Thyroid cartilage calcification
(Dense & irregular calcification within the cartilage; overlies C4-C5)

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13
Q

What is the diagnosis?

A

Facet notching
notch-like defect on posterior aspect of superior facet surface

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14
Q

What are nuclear impressions?

A

Sloped indentation of endplates

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15
Q

What is another name for nuclear impression?

A

Notochordal impression/persistency

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16
Q

What is the diagnosis?

A

Nuclear impressions
(At all cervical levels)

17
Q

What is the diagnosis?

A

Nuclear impressions
(Inf. endplate of C6, both endplates of C7)

18
Q

What is the clinical significance of nuclear impressions

A

Normal variant

19
Q

What are nuchal bones?

A
  • Long-standing degenerative ossification post. to lower cervical SPs w/in ligamentum nuchae
  • exhibit smooth bony cortex and are often angular or ovoid
20
Q

What is the diagnosis?

A

Nuchal bones

21
Q

What is the clinical presentation of a patient with nuchal bones?

A

No history/relationship to previous trauma or pain syndromes

22
Q

What is the diagnosis?

A

Intercalary bone

23
Q

What are intercalary bones?

A

Discal ossifications, usually triangular in shape, found in ant. annular fibers of an IVD

24
Q

What is the diagnosis?

A

Intercalary bones

25
Q

What is the suspected etiology of Intercalary bones?

A

Degenerative ossification

26
Q

What is this? What is the clinical significance?

A

Tracheal ring calcification
Not clinically significant

NYCC Bone & Joint (20 decks)

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