Aged 1 CD34 antibody 1 Female 1 Hemangiopericytoma 1 Humans 1 Letter 1 Liver Neoplasms 1 Meningeal Neoplasms 1 STAT6 protein 1 abdominal mass 1 adjuvant radiotherapy 1 adult 1 aged 1 bilirubin 1 bilirubin blood level 1 brain radiation cancer recurrence 1 case report 1 cell structure 1 clinical article 1 computer assisted tomography 1 craniotomy 1 female 1 follow up 1 hemangiopericytoma 1 hemihepatectomy 1 histopathology 1 human 1 human cell 1 human tissue 1