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Time-Staged Gamma Knife Stereotactic Radiosurgery for Large Cerebral Arteriovenous Malformations: A Preliminary Report

Objective We retrospectively analyzed our experience with time-staged gamma knife stereotactic radiosurgery (GKS) in treating large arteriovenous malformation(AVM)s;≥ 10 cm3). Methods Forty-five patients who underwent time-staged GKS (2-stage, n = 37;3-stage,n = 8) between March 1998 and December 2011 were included. The mean volume treated was 20.42±6.29 cm3 (range, 10.20–38.50...

Molecular profiles of EGFR, K-ras, c-met, and FGFR in pulmonary pleomorphic carcinoma, a rare lung malignancy

Background Pulmonary pleomorphic carcinoma (PPC) is a rare type of lung cancer characterized by the poor response to conventional chemotherapy and subsequent disappointing outcomes. Therefore, it is paramount to delineate the molecular characteristics of this disease entity. Methods In this study, we retrospectively examined the surgical specimens of 61 patients who underwent...

Usefulness of MS-MLPA for detection of MGMT promoter methylation in the evaluation of pseudoprogression in glioblastoma patients

Pseudoprogression is a major diagnostic dilemma in current treatment protocols for malignant gliomas that involve concurrent chemoradiotherapy. We hypothesized that methylation-specific multiplex ligation probe amplification (MS-MLPA), an assay that permits semiquantitative evaluation of promoter methylation, may be used to diagnose pseudoprogression based on the quantification...

NEUROSURGICAL TREATMENTS

Patients with cancer are at high risk of developing venous thromboembolism (VTE). The purpose of this study was to review VTE development in patients undergoing craniotomy for a neoplasm, and to further analyze risk based on multiple pre-, intra-, and post-operative variables. We analyzed all consecutive patients at our institution during the years 1999-2010 who were admitted for...

HIGH GRADE GLIOMAS AND DIPG

-Yong Kim, In-Ah Kim, Jung Ho Han, Byung-Se Choi, Hyo Seop Ahn, and Hyoung Soo Choi; Seoul National University Bundang Hospital, Seongnam, Republic of Korea BACKGROUND: Diffuse intrinsic pontine glioma

SURGICAL THERAPIES

INTRODUCTION: The role of aggressive surgical resection for glioblastoma multiforme (GBM) is controversial, with conflicting evidence published on the effect of extent of resection on outcome. We analyzed our patient population to determine if there was a correlation between greater extent of resection and overall survival or progression-free survival (PFS) in our neurosurgical...

Cell Biology and Signaling

Neuroblastoma, a cancer of the sympathetic nervous system, is the most common extracranial solid tumor in children. MYCN amplification and increased BDNF/TrkB signaling are features of high-grade tumors, yet only ∼25% of malignant tumors display those features. Thus, the identification of additional biomarkers and therapeutic targets is essential. Since aminoacylase 1 (ACY1), an...