title: Multiple myeloma mimicking bone metastasis from breast cancer: report of a case.
abstract: A 72-year-old woman with a history of early breast cancer suffered a fracture of the eighth thoracic vertebra resulting in paraplegia. Magnetic resonance imaging (MRI) showed spinal cord compression by a tumor between the ninth and tenth thoracic vertebrae. Local radiotherapy was begun under the diagnosis of metastatic breast cancer, but bone marrow aspiration and biopsy subsequently revealed plasma-cell proliferation rather than adenocarcinoma. This case report serves to demonstrate that clinicians should consider multiple myeloma as a cause of lytic bone lesions without extraskeletal metastases even in patients with a history of breast cancer.
authors.affiliation: Department of Surgery, Kiryu Kousei General Hospital, Gunma, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Tomono
authors.forename: S
authors.initials: S
authors.lastname: Fujioka
authors.forename: K
authors.initials: K
authors.lastname: Kato
authors.forename: K
authors.initials: K
authors.lastname: Yoshida
authors.forename: Y
authors.initials: Y
authors.lastname: Nimura
mesh_terms: D000368:Aged; D001943:Breast Neoplasms / Q000473:pathology; D002291:Carcinoma, Papillary / Q000473:pathology; D003951:Diagnostic Errors; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009101:Multiple Myeloma / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D013117:Spinal Cord Compression / Q000209:etiology*; D013125:Spinal Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000628:therapy