Radiograph Case Studies

Question 1

What age do growth plates cloe in dogs?

Answer 1

6-8months

Question 2

Which normal findings may cause confusion on rads?

Answer 2

> Tibial tuberosity grwoth plate (dorsal aspect of knee)
- very wide
- appears as an avulsion of the tibial tuberosity
Medial fabellae more distal - not symetrical
Lucency of lateral femoral condyle

Question 3

What is GFR proprtional to?

Answer 3

renal volume

Question 4

Where are renal stones found?

Answer 4

Renal pelvis

Question 5

Radiographic signs of disc prolapse?

Answer 5

• narrowed intervertebral space
• calcified material superimposed on vertebral canal
• small and/or opaque intervertebral foramen
• vacuum phenomenon (gas in intervertberal space)

Question 6

What soft tissue trauma would you suspect with pelvic/abdo blunt trauma?

Answer 6

• ruptured bladder
• ruptred diaphragm
• pneumothorax

Question 7

What does an irregularity and thicking of the bone at the physis of long bones indicate commonly in a young animal?

Answer 7

• haematogenous osteomyelitis

> esp. calves and foals

Question 8

What is the only thing hat can displace bladder cranially?

Answer 8

• prostate

Question 9

Do dogs get impactions?

Answer 9

Rarely

- more likely gravel sign d/t partial obstruction . tumour

Question 10

What potential errors can occour because of inadequate radiography? How can these potentially be overcome?

Answer 10

> poor quality 
- poor positioning
- incorrect exposure
- faults
> insufficient radiographs 
- min 2 projections orthogonal (more in equine limb) 
- contralateral limb 
- repeat rads after period of time (changes in pathophysiology)