Conclusion:
The association between vasculitis and cancer is not well understood but
it appears that all types of vasculitis may play a role in cancer
development or progression. Large vessel vasculitis as GCA, are rarely
described as a paraneoplastic syndrome in solid tumors and are
frequently associated with poor response to corticosteroids. This case
shows us that clinicians should keep an high index of suspicion, even in
cases of good treatment response and be aware of possible tumor
diagnosis or relapse mostly in the first year of vasculitis diagnosis.