Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Diagnostic Imaging > Lecture 6: Principles of musculoskeletal image interpretation: aggressive vs nonaggressive bone lesions > Flashcards

Lecture 6: Principles of musculoskeletal image interpretation: aggressive vs nonaggressive bone lesions Flashcards

1
Q

Which image is aggressive vs non-aggressive and why

A

Left- aggressive- lysis, periosteal reactions, polyostotic
Right: non-aggressive- proliferation but not lytic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what are some causes of aggressive bone lesions

A
  1. Primary bone neoplasia
  2. Primary soft tissue neoplasia
  3. Metastatic bone neoplasia
  4. Bacterial osteomyelitis
  5. Fungal osteomyelitis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what are some signs of aggressive bone lesions

A
  1. Bone lysis
  2. Periosteal reaction
  3. Rate of progression
  4. Zone of transition
  5. Cortical lysis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

is this an aggressive or non-aggressive lesion. Identify 1-2

A

aggressive
1. Bone lysis
2. Periosteal reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what is degree of bone lysis called

A

progression

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What wrong- aggressive or nonaggressive

A

bone lysis- aggressive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what are the two types of periosteal reactions

A

continuous and interrupted

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what can cause a continuous periosteal reaction

A

callus, slow growing neoplasia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what can cause an interrupted periosteal reaction

A

neoplasia, osteomyelitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

which is more aggressive: continuous or interrupted periosteal reactions

A

interrupted because likely neoplasia or osteomyelitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what type of periosteal reaction is this

A

continuous periosteal reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what type of periosteal reaction is this

A

Interrupted

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

the faster the progression = more ___

A

aggressive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

a regular, distinct margin zone of transition means the lesion is aggressive or non-aggressive

A

non-aggressive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

an irregular, indistinct margin zone of transition means the lesion is non-aggressive or aggressive

A

aggressive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Is cortical lysis aggressive or non-aggressive

A

aggressive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

is cortical thinning aggressive or non-aggressive

A

non-aggressive

18
Q

what indicated by 1 and is it aggressive or non-aggressive

A

cortical lysis- aggressive

19
Q

generalized bone lesions are more likely due to __ or __

A

metabolic or nutritional

20
Q

focal bone lesions are more likely __

A

primary bone tumors

21
Q

multifocal bone lesions are likely due to __spread and could be __ or __

A

hematogenous, neoplasia bacterial osteomyelitis

22
Q

how would you classify the location of this lesion: generalized, focal, multifocal

A

generalized- affecting ulna, radius and metacarpal bones

23
Q

how would you classify the location of this lesion: generalized, focal or multifocal

A

focal

24
Q

how would you classify the location of this lesion: generalized focal or multifocal

A

multifocal

25
Q

a bone lesion at the epiphysis is likely due to __ or __

A

infection, nutritional

26
Q

bone lesions in the metaphysis are typically ___ or __

A

primary neoplasia, infection

27
Q

based on the location of this lesion what are you concerned about

A

Primary bone tumor

28
Q

bone lesion in the diaphysis can be caused by what 3 things

A
  1. Metastatic neoplasia- centered at nutrient form and
  2. Secondary neoplasia- soft tissue mass with bone invasion
  3. Focal infections- related to trauma
29
Q

based on the location of this bone lesion what are you concerned about

A
  1. Metastatic neoplasia
  2. Secondary neoplasia
  3. Focal infections
30
Q

primary bone neoplasias are primarily in who

A

geriatric, large breed dogs

31
Q

soft tissue neoplasia typically as __centered around soft tissue. Usually more __ and crosses ___

A

swelling, lytic, joints

32
Q

what wrong here and what you concerned about

A

Lysis on patella, femur, patella displaced, soft tissue swelling

Concern for soft tissue neoplasia

33
Q

metastatic neoplasia usually centered around ___in bone

A

nutrient foramen

34
Q

what tumor types typically cause metastatic spread to bone

A

carcinoma, sarcoma

35
Q

what type of disease are you concerned about

A

metastatic disease

36
Q

is Bacterial osteomyelitis typically focal or multifocal

A

focal

37
Q

how does bacterial osteomyelitis occur

A

trauma or hematogenous spread

38
Q

is fungal osteomyelitis focal or multifocal

A

multifocal

39
Q

what signalment typically gets fungal osteomyelitis

A

male, young, hunting dog

40
Q

what is more likely here: bacterial or fungal osteomyelitis

A

bacterial-focal

41
Q

what is more likely here- fungal or bacterial osteomyelitis

A

fungal-multifocal

42
Q

what wrong and what cause

A

fracture of humerus due to primary bone tumor

Diagnostic Imaging (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions