Insight into paraneoplastic vasculitis associated with adenocarcinoma colon on F18-FDG PET-CT

Paraneoplastic vasculitis is a rare entity usually seen in haematological malignancies. Its incidence is even more rare in solid tumours like breast, renal, colon and lung. F-18 FDG PET-CT is commonly used to differentiate between active vasculitis and atherosclerosis in patients with large to medium vessel vasculitis. We present a case of moderately differentiated adenocarcinoma colon presenting for the assessment of with paraneoplastic vasculitis.