title: "Tumoral" enthesopathy: a juxtacortical osteosarcoma simulation.
abstract: A patient with psoriatic arthritis involving the ankles and feet developed a rapidly progressive large juxtacortical bony proliferative lesion arising from the right proximal radius at the bicipital tendon insertion site. The radiographic pattern was compatible with a juxtacortical periosteal osteosarcoma. We discuss the similar radiographic findings between a surface osteosarcoma and florid inflammatory enthesopathy that was found upon biopsy.
authors.affiliation: Section of General Medicine and Rheumatic Diseases, Veterans Affairs Medical Center, Portland, OR.
authors.forename: D L
authors.initials: DL
authors.lastname: Smith
authors.forename: S M
authors.initials: SM
authors.lastname: Campbell
authors.forename: R
authors.initials: R
authors.lastname: Wernick
mesh_terms: D000328:Adult; D001706:Biopsy; D001847:Bone Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009135:Muscular Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D012516:Osteosarcoma / Q000175:diagnosis* / Q000473:pathology; D011859:Radiography; D011884:Radius / Q000000981:diagnostic imaging / Q000473:pathology; D013710:Tendons / Q000473:pathology