case_images: PMC5798098_01
case_images: Case 1 - Maximum intensity projection image (a) showing linearly increased fluorodeoxyglucose uptake in mediastinum. coronal (b-d) and axial (e-g) sections of computed tomography, positron emission tomography and fused positron emission tomography-computed tomography images showing increased fluorodeoxyglucose uptake in aortic wall with maximum standardized uptake value: 11.3 (liver maximum standardized uptake value: 2.8)
case_images: IJNM-33-48-g001.jpg
case_images: PMC5798098_01_IJNM-33-48-g001.jpg
case_images: F1
case_images: Patient responded well and symptomatic improvement was seen after 3 months [Figure 1].
case_images: PMC5798098_02
case_images: Case 2 - Maximum intensity projection image (a) showing linearly increased fluorodeoxyglucose uptake in the mediastinum and left side of the chest wall. Coronal (b-g) and axial (h-j) sections of contrast-enhanced computed tomography, positron emission tomography and fused positron emission tomography-computed tomography images showing increased fluorodeoxyglucose uptake in aortic wall with maximum standardized uptake value: 4.3, right common carotid artery maximum standardized uptake value: 3.7 and arch of aorta maximum standardized uptake value: 2.6 (liver maximum standardized uptake value: 1.8)
case_images: IJNM-33-48-g002.jpg
case_images: PMC5798098_02_IJNM-33-48-g002.jpg
case_images: F2
case_images: Patient condition ameliorated symptomatically following treatment [Figure 2].
case_images: PMC5798098_03
case_images: Case 3 (pretreatment): Maximum intensity projection image (a) showing increased fluorodeoxyglucose uptake in mediastinum. Axial (b-d) and sagittal (e-g) sections of contrast-enhanced computed tomography, positron emission tomography and fused positron emission tomography-computed tomography images showing increased fluorodeoxyglucose uptake in aortic wall with maximum standardized uptake value: 11.1, and arch of aorta maximum standardized uptake value: 9.5 (liver maximum standardized uptake value: 2.8)
case_images: IJNM-33-48-g003.jpg
case_images: PMC5798098_03_IJNM-33-48-g003.jpg
case_images: F3
case_images: Transaxial images showed increased FDG uptake involving enlarged mediastinal lymph nodes, thickened walls of ascending aorta and arch of aorta and pericardial thickening with effusion [Figure 3].
case_images: Case 3 (posttreatment): Maximum intensity projection image (a), axial (b-d) and sagittal (e-g) sections of computed tomography, positron emission tomography and fused positron emission tomography-computed tomography images showing no evidence of abnormal fluorodeoxyglucose uptake in aortic wall with maximum standardized uptake value: 2.6 and arch of aorta maximum standardized uptake value: 2.6 (liver maximum standardized uptake value: 2.9)
case_images: IJNM-33-48-g004.jpg
case_images: PMC5798098_03_IJNM-33-48-g004.jpg
case_images: F4
case_images: Follow-up 18F-FDG PET-CT was carried out after 6 months of treatment which showed complete metabolic and morphologic response [Figure 4].