title: Primary intracerebral osteosarcoma: a rare case report and review.
abstract: BACKGROUND
  Primary intracranial osteosarcoma is a extremely rare disease entity. We describe a case of primary intracerebral osteosarcoma in an adult brain.
  
  
  METHODS
  A patient who presented with a 1-week history of headaches, and MRI examination was performed. The immunohistochemical diagnosis confirmed primary intracerebral osteosarcoma. The patient was treated with a surgical resection of the tumor.
  
  
  CONCLUSIONS
  Primary osteosarcomas occurring in the brain are extremely rare. The MRI images did not provide a specific pretreatment diagnosis, and the histopathology was the mainstay in establishing the diagnosis.
authors.affiliation: Department of Radiology, The People's Hospital of Zhenhai, No. 718 Naner West Road, Ningbo, 315202 Zhejiang China.
authors.forename: Song-Ping
authors.initials: SP
authors.lastname: Chen
authors.affiliation: Department of Pathology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, 310009 Zhejiang China.
authors.forename: Jin-Long
authors.initials: JL
authors.lastname: Tang
authors.affiliation: Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, 310009 Zhejiang China.
authors.forename: Xiu-Liang
authors.identifier: 0000-0002-5317-9505
authors.initials: XL
authors.lastname: Zhu
keywords: Brain; MRI; Osteosarcoma; Primary