title: 18F-FDG PET/CT demonstrating primary bone lymphoma of the extremities mimicking an inflammatory peripheral arthropathy.
abstract: A 66-year-old woman presents with progressive bilateral swelling of her fingers, elbows, and toes. Initially thought to represent an inflammatory peripheral arthropathy, the patient underwent rheumatology review, but subsequent tissue biopsy confirmed diffuse large B-cell lymphoma. Results of bone marrow biopsy and staging CT were negative. F-FDG PET/CT demonstrates FDG-avid bony and adjacent soft tissue disease limited to the extremities with an excellent metabolic response to primary chemotherapy. This is a rare case of primary bone lymphoma limited to the extremities mimicking an inflammatory peripheral arthropathy.
authors.affiliation: From the *Department of Clinical Radiology, St James's University Hospital, Leeds; †Department of Clinical Radiology, Pinderfields Hospital, Wakefield; and ‡Department of Nuclear Medicine, St James's University Hospital, Leeds, United Kingdom.
authors.forename: Ayano
authors.initials: A
authors.lastname: Tachibana
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Robinson
authors.forename: Chirag N
authors.initials: CN
authors.lastname: Patel
mesh_terms: D000368:Aged; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D003937:Diagnosis, Differential; D005121:Extremities / Q000000981:diagnostic imaging; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis*; D016403:Lymphoma, Large B-Cell, Diffuse / Q000000981:diagnostic imaging* / Q000473:pathology; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18