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Published in: BMC Surgery 1/2022

Open Access 01-12-2022 | Research

Hemangiopericytoma/solitary fibrous tumor of the cranial base: a case series and literature review

Authors: Zhouying Peng, Yumin Wang, Yaxuan Wang, Qinxuan Li, Yan Fang, Ruohao Fan, Hua Zhang, Weihong Jiang

Published in: BMC Surgery | Issue 1/2022

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Abstract

Background

Hemangiopericytomas (HPCs) are uncommon soft tissue tumors. HPCs that grow in the cranial base are rare. Therefore, skull-base surgeons tend to overlook this disease. This study aimed to increase the awareness of HPCs by summarizing case data from our institution and related publications. We also aimed to contribute to the number of reported cases for future systematic reviews of HPCs.

Methods

This study included all patients who underwent surgery for HPC/solitary fibrous tumor (SFT) between August 2015 and August 2019. All surgeries were performed at Xiangya Hospital Central South University. We analyzed clinical characteristics, surgical highlights, treatment modalities, and outcomes.

Results

We included six patients, aged 32–64 years. Lesions were located in the parapharyngeal space in three patients, pterygopalatine fossa in two, and saddle area in one. All patients underwent nasal endoscopic endonasal surgery. In five patients, tumors involved the internal carotid artery (ICA). The exposure and protection of the ICA during surgery are challenging but critical to complete tumor removal. The 3-year overall survival(OS) rate was 66.7%.

Conclusions

HPC/SFTs are rare tumors of the cranial base that are prone to recurrence. Cranial base HPC/SFTs are often closely associated with the ICA. To our knowledge, this case series reports the largest number of cases of HPCs associated with the ICA. We believe that there is a strong relationship between patient prognosis and whether the tumor encircles the ICA and whether the tumor is completely resected. To confirm this suggestion, more cases are needed for further analysis.
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Literature
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Metadata
Title
Hemangiopericytoma/solitary fibrous tumor of the cranial base: a case series and literature review
Authors
Zhouying Peng
Yumin Wang
Yaxuan Wang
Qinxuan Li
Yan Fang
Ruohao Fan
Hua Zhang
Weihong Jiang
Publication date
01-12-2022
Publisher
BioMed Central
Published in
BMC Surgery / Issue 1/2022
Electronic ISSN: 1471-2482
DOI
https://doi.org/10.1186/s12893-022-01718-5

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