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Synthetic treatment of intracranial peripheral primitive neuroectodermal tumor with multiple metastasis: a case report

Authors Zhang Y, Li H, Li Z, Liu M, Yang L, Fan L, Huang C, Li B

Received 10 January 2016

Accepted for publication 8 April 2016

Published 2 June 2016 Volume 2016:9 Pages 3327—3333

DOI https://doi.org/10.2147/OTT.S103988

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Lucy Goodman

Peer reviewer comments 3

Editor who approved publication: Professor Min Li


Yang Zhang,1,2 Hongsheng Li,2 Zongjuan Li,3 Ming Liu,1,2 Linke Yang,2 Liyuan Fan,2 Chengsuo Huang,2 Baosheng Li2

1School of Medicine and Life Sciences, Jinan University-Shandong Academy of Medical Sciences, 2Department of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong, 3Department of Radiation Oncology, The Second Hospital of Dalian Medical University, Dalian, Liaoning, People’s Republic of China

Abstract: Ewing sarcomas (ES) and peripheral primitive neuroectodermal tumors (pPNET) are now thought to belong to the same tumor family. Ewing sarcoma family tumor (ESFT) members commonly originate in bones and soft tissues. However, a few published articles describe ESFT arising from cranial cavities. Pathologically, ES/pPNET are composed of small round cells. Unambiguous distinction between pPNET and other small round cell tumors, in particular central PNET, is of clinical significance. Definitive diagnoses of pPNET can be obtained through CD99 (MIC2 gene product) membrane positivities and molecular identifications of chromosomal rearrangements between EWS and ETS family genes. Multimodal approaches comprising surgical resections, radiotherapies, and chemotherapies are required for the treatment of ESFT. Decompressive medical measures are preferentially performed when epidural masses are compressing spinal cords. In cases of ES-induced brain herniations, emergent radiotherapies may serve as effective tools. We report a case of multiple disseminated intracranial ES/pPNET for which synthetic treatments were used.

Keywords: primitive neuroectodermal tumors, brain neoplasms, spinal tumors, neoplasm metastases

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