title: Breast carcinoma metastasis to intracranial meningioma.
abstract: Meningiomas and breast cancers are common tumors among women in the fifth to seventh decade. However, metastasis from breast cancer to an intracranial meningioma is rare. A 63-year-old woman presented with headache, nausea and vomiting, and progressive right hemiparesis for one month. She had undergone a right modified radical mastectomy in another hospital 10 years prior. At that time, the pathological diagnosis was infiltrating ductal carcinoma. She required adjuvant radiotherapy and chemotherapy for a local recurrence 7 years later. On admission to our hospital, cranial CT scans showed a brightly enhancing, irregularly shaped lesion over the left high parietal lobe with surrounding parenchymal edema. Histopathological examination of the lesion revealed two distinct tumor types, meningioma and metastatic carcinoma of breast tissue origin. Although meningiomas have well-known radiological features, other tumors, including metastases from breast cancers may simulate them. In the clinical setting of previously diagnosed breast cancer, prompt craniotomy for removal of meningioma-like intracranial lesions is recommended to avoid missing the diagnosis of breast cancer metastasis which carries a poorer prognosis than meningioma and requires a different treatment strategy.
authors.affiliation: Department of Pathology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
authors.forename: Jui-Wei
authors.initials: JW
authors.lastname: Lin
authors.forename: Feng-Wen
authors.initials: FW
authors.lastname: Su
authors.forename: Hung-Cheng
authors.initials: HC
authors.lastname: Wang
authors.forename: Tao-Chen
authors.initials: TC
authors.lastname: Lee
authors.forename: Jih-Tsun
authors.initials: JT
authors.lastname: Ho
authors.forename: Chiu-Hsien
authors.initials: CH
authors.lastname: Lin
authors.forename: Yu-Jun
authors.initials: YJ
authors.lastname: Lin
mesh_terms: D000369:Aged, 80 and over; D001943:Breast Neoplasms / Q000473:pathology*; D002277:Carcinoma / Q000473:pathology*; D005260:Female; D006801:Humans; D007633:Keratins / Q000378:metabolism; D008577:Meningeal Neoplasms / Q000175:diagnosis / Q000378:metabolism / Q000556:secondary*; D008579:Meningioma / Q000175:diagnosis / Q000378:metabolism / Q000556:secondary*; D014057:Tomography, X-Ray Computed / Q000379:methods
chemical_list: D007633:Keratins