psoriatic arthritis

English Thesaurus

1. a form of rheumatoid arthritis usually affecting fingers and toes and associated with psoriasis (noun.state)

hypernym	:	atrophic arthritis, rheumatism, rheumatoid arthritis,
definition	:	a chronic autoimmune disease with inflammation of the joints and marked deformities; something (possibly a virus) triggers an attack on the synovium by the immune system, which releases cytokines that stimulate an inflammatory reaction that can lead to the destruction of all components of the joint (noun.state)