title: Rare occurrence of bilateral breast and peritoneal metastases from osteogenic sarcoma.
abstract: Breast metastases are uncommon and typically spread from contralateral breast carcinomas. Breast metastases that spread from extramammary malignancies are even less common, and account for 0.5%-6.6% of all malignant breast disease. As extrapulmonary metastases from osteosarcoma are uncommon, breast metastasis from osteosarcoma is extremely rare. We report a case of breast and peritoneal metastases from a tibial osteosarcoma 18 months after diagnosis, and 9 months after surgery and adjuvant chemotherapy. Computed tomography findings of multiple calcified and noncalcified tumour deposits in the lungs, pleura, peritoneum, chest wall and both breasts are described.
authors.affiliation: Hospital Kuala Lumpur, Jalan Pahang, Kuala Lumpur, Malaysia. ruohshyuan@gmail.com
authors.forename: Ruoh Shyuan
authors.initials: RS
authors.lastname: Chan
authors.forename: Gnana
authors.initials: G
authors.lastname: Kumar
authors.forename: Anushya A P
authors.initials: AA
authors.lastname: Vijayananthan
mesh_terms: D000293:Adolescent; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology*; D001943:Breast Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D005260:Female; D006801:Humans; D009362:Neoplasm Metastasis; D012516:Osteosarcoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology*; D010534:Peritoneal Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D014057:Tomography, X-Ray Computed