title: Benign tumefactive soft tissue extension from Paget's disease of bone simulating malignancy.
abstract: Osteosarcoma is a frequently fatal complication of Paget's disease of bone typically manifesting radiographically as a lytic lesion with soft tissue extension. A clinically worrisome, but benign manifestation of Paget's disease simulating malignancy because of an extraosseous mass is reported.
authors.affiliation: Department of Pathology, SUNY Upstate Medical University, Syracuse, New York, New York, USA.
authors.forename: J D
authors.initials: JD
authors.lastname: McNairn
authors.forename: T A
authors.initials: TA
authors.lastname: Damron
authors.forename: S K
authors.initials: SK
authors.lastname: Landas
authors.forename: J L
authors.initials: JL
authors.lastname: Ambrose
mesh_terms: D003937:Diagnosis, Differential; D005266:Femoral Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging*; D005269:Femur / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010001:Osteitis Deformans / Q000175:diagnosis / Q000000981:diagnostic imaging*; D012516:Osteosarcoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D011859:Radiography; D012983:Soft Tissue Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging*