Test 2: 15

Question 1

bone will have a high or low Z

Answer 1

high due to Ca and P
Z=atomic number

Question 2

what is a stress projection

Answer 2

try to show instability of a joint by stressing/pushing on a joint while getting an xray

Question 3

what to include in xray if looking at bone

Answer 3

joint above and below

2 views

Question 4

what to include in xray for joint

Answer 4

1/2 of bones above and below joint
joint centered on image

Question 5

— is an ossification center of a bony outgrowth such as a tuberosity

Answer 5

apophysis

Question 6

what is cut back zone

Answer 6

normal growth of bones
looks like loss of bone

carpus

Question 7

Answer 7

Question 8

Answer 8

Question 9

diffuse bone issues are caused by —

Answer 9

metabolic disease: juvenile osteofibrosis
nutritional disease

Question 10

monostotic lesions are caused by

Answer 10

trauma
infection
primary neoplasia

primary osseous neoplasia-osteosarcoma

Question 11

polyostotic lesions are caused by —

Answer 11

cancer (metastatic or round cell)
infections

multiple myeloma

Question 12

what are the characteristics of aggressiveness of osseous lesions

Answer 12

Question 13

is a sunburst lesion more or less aggressive than an onion skin lesion?

Answer 13

Question 14

is geographic osteolysis more or less aggressive then permeative osteolysis

Answer 14

geographic- localized can be a cyst

moth eaten and permeative: usually from neoplasia

Question 15

what kind of osteolysis

Answer 15

geographic

localized to one area

Question 16

what kind of osteolysis

Answer 16

moth eaten

Question 17

what kind of osteolysis

Answer 17

permeative

secondary to osteosarcoma

Question 18

describe transitional zone of this lesion

Answer 18

short well defined: less aggressive

has geographic osteolysis- cyst but normal bone is clear and close by

Question 19

describe the transitional zone of this lesion

Answer 19

long and poorly defined= more aggressive

can’t tell will healthy bone ends and sick bone starts

Question 20

Answer 20

Question 21

Answer 21

Question 22

Answer 22

yellow= articular space
blue= sub chondral bone
red= peri-articular bone

can not see articular cartilage in plain xray

Question 23

how to see cartilage on xray

Answer 23

use contrast
can see outline of cartilage

Question 24

an aggressive joint lesion will have — bone destruction and — bone production.

Answer 24

subchondral

Irregular, heterogeneous, interrupted intra- or peri-articular bone production

Question 25

aggressive joint lesions will have — of the articular space and — of soft tissue

Answer 25

narrowing

marked swelling

Question 26

how to see joint effusion in stifle?

Answer 26

fat pad will be squished

Question 27

normal or abnormal?

Answer 27

abnormal on the right

• joint effusion: fat pad is squished
• Osteoarthritis (Degenerative Joint Disease – DJD)
• Sub-chondral bone sclerosis
• Osteophytes

Question 28

what are some clinical signs of a non-agressive joint lesion

Answer 28

• Osteoarthritis (Degenerative Joint Disease – DJD)
• Sub-chondral bone sclerosis
• Osteophytes
• joint effusion

Question 29

Answer 29

non-aggressive joint lesion