QuestionSBA
QuestionChoice
The likely diagnosis is psoriatic arthritis, given the asymmetrical distribution, dactylitis, rash, and involvement of the distal interphalangeal joints. Livedo reticularis is a rash seen in some vasculitides, as well as anti-phospholipid syndrome.
10034891
e
Livedo reticularis
QuestionChoice
The likely diagnosis is psoriatic arthritis, given the asymmetrical distribution, dactylitis, rash, and involvement of the distal interphalangeal joints. Onycholysis and nail pitting are common features of the condition.
10034887
a
Onycholysis
QuestionChoice
The likely diagnosis is psoriatic arthritis, given the asymmetrical distribution, dactylitis, rash, and involvement of the distal interphalangeal joints. Paronychia is an infection of the nail fold.
10034890
d
Paronychia
QuestionChoice
The likely diagnosis is psoriatic arthritis, given the asymmetrical distribution, dactylitis, rash, and involvement of the distal interphalangeal joints. Nodules are a feature of rheumatoid, rather than psoriatic, arthritis.
10034889
c
Nodules
QuestionChoice
The likely diagnosis is psoriatic arthritis, given the asymmetrical distribution, dactylitis, rash, and involvement of the distal interphalangeal joints. Tophi are usually found in gout - these are depositions of urate crystals that are often visible and palpable.
10034888
b
Tophi
Concept
Chapter
2693
3767
Psoriatic arthritis
Topic
146
Rheumatology
19381
Onycholysis, the painless separation of the nail from its bed, is a common nail manifestation in psoriatic arthritis. It occurs due to inflammation, often accompanied by pitting and subungual hyperkeratosis.
A 43-year-old man is referred to the rheumatology clinic by his GP for investigation of joint stiffness and pain, mainly involving the hands (left more than the right)

On examination, he has marked dactylitis of the left index finger. He also has a scaly rash on his right elbow. His distal interphalangeal joints are tender to palpation.

Given the most likely diagnosis, which other finding is likely to be elicited?
a