Psoriatic arthritis
Case contributed by RMH Core Conditions
Diagnosis certain
Citation, DOI, disclosures and case data
Citation:
Conditions R, Psoriatic arthritis. Case study, Radiopaedia.org (Accessed on 19 Apr 2024) https://doi.org/10.53347/rID-33845
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rID:
33845
Disclosures:
At the time the case was submitted for publication RMH Core Conditions had no recorded disclosures.
View RMH Core Conditions's current disclosuresCase published:
30 Jan 2015
Revisions:
7 times, by
4 contributors -
see full revision history and disclosures
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Presentation
Hand pain, long-standing.
Patient Data
Age: 60 years
Gender: Female
From the case:
Psoriatic arthritis
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Bony destruction consistent with arthritis deformans is seen with "pencil-in-cup" deformity of the DIP of the index and PIP of the ring finger. No significant juxta-articular osteopaenia or other joint involvement is seen. Findings are consistent with known psoriatic arthritis.
3 case questions available
Q: What type of arthritis do you suspect? show answer
A: Psoriatic arthritis is the most likely based on the imaging findings.
Q: What are some extraskeletal manifestations of psoriasis? show answer
A: Plaque-like skin lesions, typically over the extensor surface of the elbow. Nail changes include pitting and onycholysis.
Q: How common is psoriasis? show answer
A: Approximately 2.5% of the population is affected in the West. It is much less common in Japan, South America and other ethnic groups.
Case Discussion
Psoriatic arthritis (PsA) is one of the seronegative arthropathies. General imaging differential diagnoses include rheumatoid arthritis, erosive osteoarthritis and reactive arthritis.
References
- 1. Langley RG, Krueger GG, Griffiths CE. Psoriasis: epidemiology, clinical features, and quality of life. Ann. Rheum. Dis. 2005;64 Suppl 2 (suppl_2): ii18-23. doi:10.1136/ard.2004.033217 - Free text at pubmed - Pubmed citation
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