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Case Reports in Neurological Medicine
Volume 2016 (2016), Article ID 5245078, 4 pages
http://dx.doi.org/10.1155/2016/5245078
Case Report

Angiographic Evidence of a Purely Pial Bihemispheric Intracranial Hemangiopericytoma

1Cushing Neuroscience Institute and Department of Neurosurgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, NY 11030, USA
2Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, MLC 2016, Cincinnati, OH 45229-3039, USA

Received 3 October 2015; Accepted 17 December 2015

Academic Editor: Isabella Laura Simone

Copyright © 2016 Nathaniel Stetson et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. Classification of hemangiopericytoma (HPC) has evolved to a mesenchymal, nonmeningothelial grade two or three neoplasm according to the World Health Organization; however its blood supply has always been defined by dual origin, pial and dural contribution. Case Description. We present the case of a patient with an intracranial HPC with only pial vascular supply. Angiography confirmed the lack of dural supply to this bihemispheric intracranial mass. Subsequent histologic examination confirmed the diagnosis of hemangiopericytoma. Angiographic evidence here is atypical of the natural history of hemangiopericytomas with dual vascular supply and was critical in the decision-making towards surgical resection without tumor embolization. Conclusion. Data presented suggests the lack of dural vascular supply alone does not rule out the diagnosis of hemangiopericytoma.