title: Breast metastasis in osteosarcoma.
abstract: A young girl with a history of chondroblastic osteosarcoma of the tibia developed a pulmonary metastasis which was treated by metastasectomy, chemotherapy and lung irradiation. There years later, at the age of 15, she developed a breast mass which was excised and which proved to be a poorly differentiated sarcoma. This was almost certainly a metastasis rather than a radiation-induced second primary tumour, in view of the short interval since radiotherapy. The ultrasonographic features of this lesion are presented here and the differential diagnosis is discussed in this context.
authors.affiliation: Department of Radiology, Children's Hospital Los Angeles, California, USA.
authors.forename: D J
authors.initials: DJ
authors.lastname: Roebuck
authors.forename: J K
authors.initials: JK
authors.lastname: Sato
authors.forename: J
authors.initials: J
authors.lastname: Fahmy
mesh_terms: D001859:Bone Neoplasms / Q000473:pathology*; D001943:Breast Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D002648:Child; D002804:Chondroblastoma / Q000473:pathology*; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D012516:Osteosarcoma / Q000473:pathology*; D011859:Radiography; D013977:Tibia; D014463:Ultrasonography