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Pencil-in-cup deformity - rheumatoid arthritis

Case contributed by Dr Henry Knipe


Bilateral hand pain

Patient Data

Age: 75 years
Gender: Female

Symmetrical polyarthropathy involving both the carpus and fingers. Marginal erosions are most apparent in the carpus. On the right lateral projection, there is a pencil-in-cup deformity of the fifth finger. No soft tissue calcification. 

Case Discussion

This patient had a long-standing history of rheumatoid arthritis. Pencil-in-cup deformity is classically associated with psoriatic arthritis but can also be associated with rheumatoid arthritis as well as systemic sclerosis (scleroderma) and reactive arthritis. 

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Case information

rID: 77947
Published: 25th May 2020
Last edited: 25th May 2020
Inclusion in quiz mode: Included

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