QuestionSBA
QuestionChoice
This is incorrect, psoriatic arthritis has several different patterns of joint involvement. The most common is symmetrical joint involvement, but asymmetrical joint disease is present in up to 30% of patients.
10000455
e
Joint involvement is always asymmetrical
QuestionChoice
This is incorrect. Psoriatic arthritis can occur before the onset of psoriasis or even in the absence of skin disease.
10000452
b
Psoriatic skin lesions are always present
QuestionChoice
Psoriatic arthritis is a seronegative inflammatory arthropathy, therefore rheumatoid factor is negative.
10000454
d
Rheumatoid factor is positive
QuestionChoice
Psoriatic arthritis is a chronic inflammatory seronegative arthritis which is associated with psoriasis. Psoriatic arthritis occurs in around 30% of individuals with psoriasis but can develop in absence of the skin condition, and, crucially, the severity of psoriasis does not correlate with the severity of psoriatic arthritis. Psoriatic arthritis can occur symmetrically or asymmetrically and distal interphalangeal joint involvement occurs in around 10% of patients.  Psoriatic arthritis can be difficult to differentiate from rheumatoid arthritis but there are several key differentiating factors:

* DIP joint involvement is more common in psoriatic arthritis
* Dactylitis is more common in psoriatic arthritis
* Psoriatic arthritis is rheumatoid factor negative
* Psoriatic arthritis is associated with psoriatic skin lesions and nail changes
* Psoriatic arthritis is more likely to be asymmetrical than rheumatoid arthritis
10000451
a
Arthritis can involve the distal interphalangeal joints
QuestionChoice
Although nail involvement is common in psoriatic arthritis, leukonychia is not a sign of psoriatic nail disease. Signs of psoriatic nail involvement include pitting, onycholysis, and nail hyperkeratosis.
10000453
c
Nail leukonychia is a common finding
Concept
Chapter
2693
3767
Psoriatic arthritis
Topic
146
Rheumatology
12637
A 45-year-old male presents to the clinic after a recent diagnosis of psoriatic arthritis. He is enthusiastic about engaging with treatment and is seeking advice and further information on his condition.

Which of the following is true regarding psoriatic arthritis?
a