One-stop shopping ¹⁸F-FDG PET/CT in a patient with vascular type Behçet’s disease

Excerpt

A 43-year-old woman with a history of vascular type Behçet’s disease presented prolonged worsening edema in the upper body. A transaxial contrast enhanced computed tomography (CT) image (A) shows contrast defect in the superior vena cava (SVC) (arrow). The 3D volume rendered image (B) shows markedly enlarged intercostal veins and inferior epigastric vein of the right chest wall consistent with collateral vessels. In early dynamic scan, positron emission tomography (PET)/CT emission scanning of the chest region with a 1-min acquisition was performed beginning simultaneously with ¹⁸F-fluorodeoxyglucose (FDG) bolus injection. ¹⁸F-FDG was injected from the right median cubital vein. To evaluate hemodynamics and vascular anatomical structures, each 3 s time frame was reconstructed during the first 1 min. Static scan was performed 120 min after ¹⁸F-FDG injection. PET/CT angiography images (maximum intensity projection images, a: 0–3 s, b: 4–6 s, c: 7–9 s, d: 10–12 s, e: 13–15 s, f: 16–18 s, g: 19–21 s) reveal blood flow to SVC from the right subclavian vein via the intercostal veins and enlarged collateral vessels similar to the findings on contrast enhanced CT. A static ¹⁸F-FDG PET/CT fused image shows no abnormal uptake of SVC wall (h). …