"T1: hypointense"
"T2: hyperintense"
"C+ (Gd): intense enhancement"
"PET with 18F-fluorodeoxyglucose is an excellent tool in assessing the metabolic activity of the mass, detecting other sites of inflammation and disclosing infectious or neoplastic lesions with which periaortitis may be associated."
Expected headings
"Signal characteristics"
"Periaortitis may be a local immune response to antigens like oxidised low-density lipoproteins and ceroid found in the atherosclerotic plaques of the abdominal aorta. Some cases are due to IgG4-related disease. The disease tends primarily to involve the vascular structures, causing stenosis of the major branches of the abdominal aorta (e.g. coeliac trunk, superior mesenteric artery, renal arteries)."