title: Intracranial metastatic parathyroid carcinoma: case report.
abstract: BACKGROUND
  Although parathyroid carcinoma is not frequent, it is a slowly progressive disease characterized by frequent recurrences. A review of the literature revealed only 2 other cases of intracranial metastatic parathyroid carcinoma. We present here the case of cerebral metastases from parathyroid carcinoma that could be treated successfully.
  
  
  METHODS
  This 61-year-old Japanese woman presented to our institute with a complaint of right lower-extremity weakness after hemiconvulsion. She had undergone a parathyroidectomy for parathyroid carcinoma 18 years earlier. Lung metastasis was also detected 6 years earlier, and she has been dialyzed twice a month after chemotherapy. Computed tomographic scans demonstrated 2 enhancing right frontal tumors. After resection of the intracranial metastases, her right hemiparesis and secondary hyperparathyroidism resolved.
  
  
  CONCLUSIONS
  This case report supports aggressive surgical management to eliminate all parathyroid hormone-secreting malignant tissue and prevent metabolic complications.
authors.affiliation: Department of Neurosurgery, Niigata Cancer Hospital, Kawagishi-chou 2-15-3, Niigata 951, Japan. brain@niigata-cc.niigata.niigata.jp
authors.forename: Seiichi
authors.initials: S
authors.lastname: Yoshida
mesh_terms: D001932:Brain Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary* / Q000601:surgery*; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary; D008875:Middle Aged; D010282:Parathyroid Neoplasms / Q000473:pathology*; D013997:Time Factors; D014057:Tomography, X-Ray Computed