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Case Reports in Medicine
Volume 2010, Article ID 634839, 7 pages
http://dx.doi.org/10.1155/2010/634839
Case Report

Reoperation as a Result of Raised Intracranial Pressure Associated with Cyst Formation in Tumor Cavity after Intracranial Tumor Resection: A Report of Two Cases

1Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, China
2Department of Radiology, First Hospital of Jilin University, Changchun 130021, China
3Department of Pathology, First Hospital of Jilin University, Changchun 130021, China

Received 2 May 2010; Accepted 14 September 2010

Academic Editor: Jonathan Cole

Copyright © 2010 Jinlu Yu 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

Reoperation as a result of increased intracranial pressure (ICP) associated with cyst formation in an intracranial tumor resection cavity is a rare clinical condition. We report two cases of reoperation as a result of raised ICP associated with cyst formation in the tumor resection cavity, one arising after glioma resection and the other after meningioma resection. In both cases, a “valve”-like structure was noted intraoperatively in the roof region of the tumor resection cavity. Surgical resection of the “valve”-like structure led to slow regression over several months after the reoperation rather than to immediate disappearance of the cyst. Both cases illustrate that the “valve”-like structure formed in the roof region of the tumor resection cavity may be responsible for cyst formation. Surgical resection of it provides good long-term outcomes in such patients though short-term outcomes are unsatisfactory; we speculate that if the resection of the cortical tissue around the “valve”-like structure is enough wide, its return may be avoided.