Psoriatic Arthropathy

Question 1

What is Psoriatic Arthritis?

Answer 1

Inflammatory autoimmune arthritis associated with psoriasis

Question 2

What group of conditions is psoriatic arthritis associated with?

Answer 2

Seronegative spondyloarthropathy group of conditions

Question 3

What is there a family history of with psoriatic arthritis?

Answer 3

Psoriasis

Question 4

What is the a genetic association with psoriatic arthritis?

Answer 4

HLA B27

Question 5

How does psoriatic arthritis present?

Answer 5

• Plaques of psoriasis on skin (scalp or umbilicus)
• Pitting of nails
• Dactylitis
• Enthesitis
• Osteolysis
• Thickening of nail and separation of nail from nailbed

Question 6

What is dactylitis?

Answer 6

Inflammation of the finger

Question 7

What is enthesitis?

Answer 7

Inflammation of the enthesis

Question 8

What is osteolysis?

Answer 8

Telescoping of the finger

Question 9

What is the classification of psoriatic arthritis?

Answer 9

• Asymmetrical oligoarthritis
• Symmetrical polyarthritis
• Spondylitis
• Distal interphalangeal joint arthritis
• Arthritis mutilans

Question 10

What is asymmetric oligoarthritis?

Answer 10

Less than 5 joints

Question 11

What is symmetrical polyarthritis?

Answer 11

More than 5 joints

Question 12

What is spondylitis?

Answer 12

Inflammation of the joints of the spine

Question 13

What is arthritis mutilans?

Answer 13

Destruction of the bone and collapse of the digits

Question 14

How is psoriatic arthritis diagnosed?

Answer 14

Psoriasis epidemiological screening tool (PEST)

Question 15

What does PEST include?

Answer 15

Joint pain
Swelling
Nail pitting
Arthritis

Question 16

What can be seen on an x-ray with psoriatic arthritis?

Answer 16

Pencil in cup appearance

Also: coexistence of erosive changes and new bone formation

Question 17

What is the management of psoriatic arthritis?

Answer 17

NSAID- pain
DMARD’s- Methotrexate
Anti-TNF- Entanercept