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.