Wegener's Vasculitis: See granulomatosis with polyangiitis.

QUESTION
The term arthritis refers to stiffness in the joints. See AnswerFrom 
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References
Tracy, C.L. "Granulomatosis With Polyangiitis (Wegener Granulomatosis)." Medscape. Jan. 4, 2019. <https://emedicine.medscape.com/article/332622-overview>.