Arthritis mutilans

Last revised by Dr Henry Knipe on 19 May 2020

Arthritis mutilans is a severe form of many inflammatory arthropathies, most commonly psoriatic (PsA) and rheumatoid arthritis (RhA), characterized by "telescoping" of the fingers where osteolysis leads to articular collapse allowing loose skin and the ability of these digits to have the motion of a telescope. 

Pathology

Arthritis mutilans more commonly occurs in the hands than the feet 2

Etiology

​Aside from PsA and RhA, arthritis mutilans is also associated with 1-3:

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