title: Apparent diffusion coefficient map of a case of extramedullary plasmacytoma.
abstract: Plasmacytomas are rare tumors, which arise from the monoclonal proliferation of malignant plasma cells. They may affect either the bony skeleton or rarely the soft tissues, the latter being referred to as extramedullary or extraosseous. We report a case of an extramedullary plasmacytoma that presented as a soft tissue mass involving the muscles of the left leg, in a patient who was previously treated for multiple myeloma. We describe the MR Imaging characteristics of the tumor and highlight the usefulness of diffusion-weighted imaging with apparent diffusion coefficient mapping.
authors.affiliation: Department of Radiology, University of Miami Miller School of Medicine, Miami, FL, USA.
authors.forename: Amrutha
authors.initials: A
authors.lastname: Ramachandran
authors.affiliation: Department of Pathology, University of Miami Miller School of Medicine, Miami, FL, USA.
authors.forename: Alero F
authors.initials: AF
authors.lastname: Inyang
authors.affiliation: Department of Radiology, University of Miami Miller School of Medicine, Miami, FL, USA.
authors.forename: Ty K
authors.initials: TK
authors.lastname: Subhawong
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D038524:Diffusion Magnetic Resonance Imaging; D006801:Humans; D061705:Image-Guided Biopsy; D007150:Immunohistochemistry; D007866:Leg; D008297:Male; D009101:Multiple Myeloma / Q000150:complications; D010166:Palliative Care; D010954:Plasmacytoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000532:radiotherapy; D012983:Soft Tissue Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000532:radiotherapy
keywords: ADC; DWI; Extramedullary plasmacytoma; MRI; Multiple myeloma