Coexistence of Takayasu arteritis and chronic myeloid leukemia: Coincidental or paraneoplastic phenomenon?

Vasculitis may rarely be seen in the course of myeloproliferative neoplasms (MPN). In vasculitis associated with hematological diseases, mostly small- and medium-vessel involvement is expected, aortitis is very rare. It is not exactly known whether large-vessel vasculitis associated with MPN is a paraneoplastic phenomenon or coincidental. We aimed to present an uncommon case diagnosed with chronic myeloid leukemia and Takayasu arteritis concurrently.