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VM728: Imaging > SA Metabolic Bone Disease > Flashcards

SA Metabolic Bone Disease Flashcards

1
Q

Signalment: Panosteitis

A

GSD common
Self-limiting
Long bones
5-18m

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2
Q

What does panosteitis look like on radiographs?

A

Ill- or well-defined patches of variably faint sclerosis in the medullary cavity
No lysis

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3
Q
A

Panosteitis

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4
Q
A

Panosteitis

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5
Q
A

Panosteitis

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6
Q

Signalment: Hypertrophic Osteodystrophy

A

Large breed
2-7m
Febrile and lame in more than one limb

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7
Q
A

Hypertrophic osteodystrophy

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8
Q

What does hypertrophic osteodystrophy look like radiographically?

A

Irregular lucent line in metaphysis parallel to normal physeal line - double physis
+/- adjacent sclerosis

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9
Q
A

Hypertrophic osteodystrophy

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10
Q
A

Hypertrophic osteodystrophy

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11
Q
A

Hypertrophic osteodystrophy with mild periosteal proliferation

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12
Q
A

Hypertrophic osteodystrophy with moderate irregular periosteal proliferation

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13
Q
A

Chronic hypertrophic osteodystrophy
Mild periosteal “cupping”

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14
Q
A

Chronic hypertrophic osteodystrophy
Mild periosteal “cupping”

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15
Q

Signalment: Retained cartilage core

A

Large to giant breed dogs
Distal ulna most common
Can see secondary limb deformities

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16
Q

What can be seen radiographically with retained cartilage core?

A

Lucent, conical cartilage core in medullary region of ulnar metaphysis

17
Q
A

Retained cartilage core

18
Q
A

Retained cartilage core

19
Q

What disease processes result in osteopenia?

A

Hyperparathyroidism
Humoral hypercalcemia of malignancy
Disuse osteopenia
Hypovitaminosis D
Osteogenesis imperfecta

20
Q

What disease processes result in too much mineral?

A

Hypervitaminosis A
Osteopetrosis
Acquired diffuse osseous sclerosis
Polyostotic hyperostosis

21
Q

What are the radiographic findings of hyperparathyroidism?

A

Cortical thinning
Decreased bone density
Loss of definition of trabecular pattern and loss of lamina dura

22
Q

What are the radiographic findings of nutritional secondary hyperparathyroidism?

A

Same as for hyperparathyroidism
+/- angular fractures
+/- angular limb deformities

23
Q
A

Folding fracture d/t nutritional secondary hyperparathyroidism

24
Q

What are the radiographic findings of renal secondary hyperparathyroidism?

A

Loss of bone density (worse in skull)
Early = loss of lamina dura
Late = fibrous osteodystrophy

25
Q
A

Renal secondary hyperparathyroidism

26
Q
A

Renal secondary hyperparathyroidism

27
Q

What are the radiographic findings of disuse osteopenia?

A

Overall decreased opacity
+/- coarse trabecular pattern in medulla

VM728: Imaging (30 decks)

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