title: Abdominal aortic aneurysm with bony erosion mimicking recurrent non-Hodgkin lymphoma on FDG PET/CT.
abstract: An 80-year-old man with a history of non-Hodgkin lymphoma in complete remission after chemotherapy in 2009 presented with lumbar pain. MRI demonstrated anterior L4 bony erosions. FDG PET/CT revealed the large retroperitoneal mass with central photopenia and a mildly hypermetabolic rim. Ultrasound revealed a dilated aorta with atherosclerotic plaque and eccentric mural thrombus. A newly developed mass-like lesion in a patient with history of lymphoma could be mistaken for lymphoma recurrence on FDG PET/CT.
authors.affiliation: Department of Nuclear Medicine and Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Jeollabuk-do, Republic of Korea.
authors.forename: Dae-Weung
authors.initials: DW
authors.lastname: Kim
authors.forename: Woo Hyoung
authors.initials: WH
authors.lastname: Kim
authors.forename: Chang Guhn
authors.initials: CG
authors.lastname: Kim
mesh_terms: D000369:Aged, 80 and over; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging* / Q000473:pathology*; D003937:Diagnosis, Differential; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000000981:diagnostic imaging*; D008297:Male; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography; D012008:Recurrence; D014057:Tomography, X-Ray Computed
chemical_list: D019788:Fluorodeoxyglucose F18