Giant cell arteritis (GCA), the most frequent large-vessel vasculitis, typically involves medium to large arteries and occasionally coexists with malignancy. We report a 69-year-old woman with renal carcinoid who developed concurrent tumour recurrence and GCA. Following progressive symptoms of headache and bone pain, 68 GaGa-DOTA-Tyr3-octreotide ( 68 GaGa-DOTATOC) positron emission tomography/computed tomography (PET/CT) demonstrated multisite recurrent renal carcinoid, diffuse arterial and cardiac activity and heterogeneous 68 GaGa-DOTATOC-avid thoracic aortic aneurysm. An elevated erythrocyte sedimentation rate (ESR) of 87 mm/h confirmed active GCA. This case highlights the novel utility of 68 GaGa-DOTATOC PET/CT as a dual-purpose biomarker for both tumour mapping and vascular inflammation in complex clinical presentations.
Abdlkadir et al. (Tue,) studied this question.