Pencil-in-cup deformity: diagram

Case contributed by Dr Sachintha Hapugoda

Simplified illustration of the pencil-in-cup deformity evident at the proximal interphalangeal joint of the digit. 

Case Discussion

The pencil-in-cup deformity is a common radiographic feature of psoriatic arthritis. See article for more information.

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Case information

rID: 54415
Published: 9th Jul 2017
Last edited: 9th Jul 2017
Inclusion in quiz mode: Included

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