title: Sacro-anterior haemangiopericytoma: a case report.
abstract: Haemangiopericytoma (HPC) is a rare vascular tumor with borderline malignancy, considerable histological variability, and unpredictable clinical and biological behavior. HPC can present a diagnostic challenge because of its indeterminate clinical, radiological, and pathological features. HPC generally presents in adulthood and is equally frequent in both sexes. HPC can arise in any site in the body as a slowly growing and painless mass. The precise cell type origin of HPC is uncertain. One third of HPCs occur in the head and neck areas. Exceptional cases of hemangioblastoma arising outside the head and neck areas have been reported, but little is known about their clinicopathologic and immunohistochemical features. This study reports on a case of a large sacro-anterior HPC in a 65-year-old male.
authors.affiliation: 1 Department of Graduate, Bengbu Medical College, Bengbu 233000, China ; 2 Cancer Center, No. 82 Hospital of People's Liberation Army Subsidiary, Huai'an 223001, China.
authors.forename: Xiu-Hong
authors.initials: XH
authors.lastname: Ge
authors.affiliation: 1 Department of Graduate, Bengbu Medical College, Bengbu 233000, China ; 2 Cancer Center, No. 82 Hospital of People's Liberation Army Subsidiary, Huai'an 223001, China.
authors.forename: Shuai-Shuai
authors.initials: SS
authors.lastname: Liu
authors.affiliation: 1 Department of Graduate, Bengbu Medical College, Bengbu 233000, China ; 2 Cancer Center, No. 82 Hospital of People's Liberation Army Subsidiary, Huai'an 223001, China.
authors.forename: Hu-Sheng
authors.initials: HS
authors.lastname: Shan
authors.affiliation: 1 Department of Graduate, Bengbu Medical College, Bengbu 233000, China ; 2 Cancer Center, No. 82 Hospital of People's Liberation Army Subsidiary, Huai'an 223001, China.
authors.forename: Zhi-Min
authors.initials: ZM
authors.lastname: Wang
authors.affiliation: 1 Department of Graduate, Bengbu Medical College, Bengbu 233000, China ; 2 Cancer Center, No. 82 Hospital of People's Liberation Army Subsidiary, Huai'an 223001, China.
authors.forename: Qian-Wen
authors.initials: QW
authors.lastname: Li
keywords: Sacro-anterior; haemangiopericytoma (HPC); soft tissue tumor