35. MSK

Question 1

Rhomboid crystal in synovial fluid?

Answer 1

Pseudogout

Question 2

Yellow needle shaped crystals in parallel - negatively birefringent?

Answer 2

Gout

Question 3

Blue needle shaped crystals in parallel - positively birefringent?

Answer 3

Pseudogout

Question 4

Osteoarthritis - inflammatory?

Answer 4

No, wear and tear (degenerative)

Question 5

Rheumatoid arthritis - inflammatory?

Answer 5

Yes

Question 6

Ankylosing spondylitis - inflammatory?

Answer 6

Yes

Question 7

Heberden’s node?

Answer 7

Osteophyte

Question 8

MCP joints involved?

Answer 8

Rheumatoid arthritis

Question 9

What is rheumatoid factor?

Answer 9

IgM against IgG

Question 10

Synovial tissue that is hyperplastic and that grows over articular cartilage and destroys it?

Answer 10

Pannus - which is why people with rheumatoid arthritis need to move their joints

Question 11

Patient: rheumatoid arthritis, dry eyes, dry mouth?

Answer 11

Sjogren’s syndrome

Question 12

First joint involved in gout?

Answer 12

Big toe - often happens at night

Question 13

Does elevated uric acid level mean you have gout?

Answer 13

No - determined by presence of monosodium urate crystals

Question 14

Once you have tophus, what do you use for treatment?

Answer 14

Allopurinol

Question 15

What would you not want to eat if you have gout?

Answer 15

Alcohol, red meat

Question 16

Sacroiliac and fusion of vertebral column?

Answer 16

Ankylosing spondylitis

Question 17

What other manifestations can you get with ankylosing spondylitis?

Answer 17

Uveitis and aortitis

Question 18

Urine turns black on exposure to light?

Answer 18

Alkaptonuria