Clinical and genomic features in patients with second primary glioblastoma following first primary renal cell carcinoma.

Purpose: To explore the potential pathogenesis and clinical features of second primary glioblastoma (spGBM) following first primary renal cell carcinoma (fpRCC).

Methods: Patients with spGBM after fpRCC were enrolled from our institution and the SEER dataset. Sanger sequencing, whole genome sequencing, and immunehistochemistry were used to detect molecular biomarkers.

Systemic immune-inflammation landscape in brain metastasis needing neurosurgical resection: Analysis of 230 consecutive cases in a single center.

Background: Systemic immune-inflammation states across the heterogeneous population of brain metastases are very important in the context of brain-immune bidirectional communication, especially among the patients needing neurosurgical resection. Four blood cell ratios based on complete blood count (CBC) test serving as prognostic biomarkers have been highlighted by previous studies, including systemic immune-inflammation index (SII), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and lymphocyte-to-monocyte ratio (LMR). However, the presurgical systemic immune-inflammation landscape in brain metastasis needing neurosurgical resection is limited.

Identifying Differential Expression Genes and Prognostic Signature Based on Subventricular Zone Involved Glioblastoma.

Studies have suggested that glioblastoma (GBM) cells originate from the subventricular zone (SVZ) and that GBM contact with the SVZ correlated with worse prognosis and higher recurrence. However, research on differentially expressed genes (DEGs) between GBM and the SVZ is lacking. We performed deep RNA sequencing on seven SVZ-involved GBMs and paired tumor-free SVZ tissues.

Maxillary Swing Approach for Central Skull Base Lesions in Extreme Situations: A Single-Institutional Case Series.

Objective: Radical resection of complex lesions occupying multiple compartments at the central skull base remains a significant challenge, since surgical outcomes may be compromised by insufficient exposure and inappropriate techniques. However, the efficiency of the maxillary swing approach for these lesions has not been sufficiently evaluated. Careful assessment of lesion characteristics must be performed when selecting the appropriate procedure.

Preoperative blood testing for glioblastoma, brain metastases, and primary central nervous system lymphoma differentiation.

Background: Differentiating glioblastoma (GBM), brain metastases, and primary central nervous system lymphoma (PCNSL) in clinical practice is difficult. This study aimed to evaluate the diagnostic value of routine blood biomarkers in patients with GBM, brain metastases, and PCNSL and find a preoperative differential diagnostic tool for these tumors.

Methods: The perioperative medical records of 70 GBM, 41 PCNSL, and 81 brain metastases patients and their preoperative blood test results were compared and analyzed, and a diagnostic model to differentiate among them established.

Identification of prognostic biomarkers for breast cancer brain metastases based on the bioinformatics analysis.

Purpose: The prognosis of breast cancer (BC) patients who develop into brain metastases (BMs) is very poor. Thus, it is of great significance to explore the etiology of BMs in BC and identify the key genes involved in this process to improve the survival of BC patients with BMs.

Patients And Methods: The gene expression data and the clinical information of BC patients were downloaded from TCGA and GEO database.

Free Flap Transfer, a Safe and Efficient Method for Reconstruction of Composite Skull Base Defects After Salvage Resection of Advanced Intracranial and Extracranial Communicating Tumors.

Objective: Surgical treatment of advanced intracranial and extracranial communicating skull base tumors is challenging, especially for the reconstruction of the large composite defect left by tumor resection. The aim of the study is to evaluate the utility of the free flap reconstruction of the defects resulting from radical resection of these tumors in a single institution.

Methods: The clinical data of 17 consecutive patients who underwent free flap reconstruction for defect left by salvage resection of advanced intracranial and extracranial communicating tumors from 2013 to 2019 were retrospectively collected and analyzed.

Clinial Features, Individualized Treatment and Long-Term Surgical Outcomes of Skull Base Meningiomas With Extracranial Extensions.

Skull base meningiomas with extracranial extensions are rarely described. This study describes the clinical features, surgical management and clinical outcomes of these rare tumors and investigates risk factors associated with progression-free survival (PFS). The clinical data of 34 consecutive patients who underwent surgery for skull base meningiomas with extracranial extensions from 2007 to 2018 were retrospectively collected and analyzed.

Identifying Predictive Gene Expression and Signature Related to Temozolomide Sensitivity of Glioblastomas.

Temozolomide (TMZ) is considered a standard chemotherapeutic agent for glioblastoma (GBM). Characterizing the biological molecules and signaling pathways involved in TMZ sensitivity would be helpful for selecting therapeutic schemes and evaluating prognosis for GBM. Thus, in the present study, we selected 34 glioma cell lines paired with specific IC values of TMZ obtained from CancerRxGene and RNA-seq data downloaded from the Cancer Cell Line Encyclopedia to identify genes related to TMZ sensitivity.

Heterogeneity of tumor-infiltrating lymphocytes ascribed to local immune status rather than neoantigens by multi-omics analysis of glioblastoma multiforme.

Hypothetically, intratumoral genomic heterogeneity has the potential to foster tumor-infiltrating lymphocyte (TIL) diversity; however, no study has directly tested this hypothesis by simultaneously investigating somatic mutations, TIL diversity, and immune response activity. Thus, we performed whole-exome sequencing, immune repertoire sequencing and gene expression on ten spatially separated tumor samples obtained from two tumor masses excised from a glioblastoma multiforme (GBM) patient, and we included peripheral blood as control. We found that although the multi-region samples from one tumor shared more common mutations than those from different tumors, the TIL populations did not.

Dumbbell-Shaped Jugular Foramen Tumors Extending to the Neck: Surgical Considerations Based on Imaging Findings.

Objective: Dumbbell-shaped jugular foramen tumors (DSJFTs) extending to the neck present diagnostic and management difficulties because of their rarity, various pathologies, and multidisciplinary involvement. Accurate imaging findings are of great importance for surgical planning and clinical outcomes. However, few articles have discussed this issue to date.

[Clinical features and comprehensive treatment of skull base osteosarcoma].

Objective: To analyze the clinical features and treatment of skull base osteosarcoma.

Methods: The clinical data of 18 patients with skull base osteosarcoma, who were admitted to the CAMS Cancer Hospital from January 2005 to November 2013, were retrospectively analyzed. The patients were followed up by telephone, outpatient review and other means.

[Lateral cervical approach for resection of cervical dumbbell-shape neurogenic tumors].

Objective: To study the indication and character of the lateral-cervical approach for treating dumble-shape neurogenic tumors in cervical spine.

Methods: Retrospectively review the clinical data of 14 dumble-shape neurogenic tumors in cervical spine, from October 2005 to October 2011. Among them 8 were males and 6 were females, range from 11 to 60 years old.

A proposed scheme for the classification and surgical planning of falcine meningioma treatment.

Falcine meningiomas (FM) represent a surgical challenge even in the microsurgical era. An individualised surgical approach to different FM is indispensable, but there have been few reports in this regard. Thus, based on our series of 20 patients with FM who underwent surgery between October 2001 and June 2010, we propose a classification scheme for FM removal and demonstrate its effectiveness.

Triple dumbbell-shaped jugular foramen schwannomas.

Purpose: Triple dumbbell-shaped jugular foremen schwannomas (DSJFSs) have high cervical extension according to Bulsara's classification. One-stage, single-discipline, total removal of triple DSJFSs is not always possible due to their both intracranial and cervical extensions. We evaluated our experience in one-stage resection of triple DSJFSs by using a combined neurosurgical and head and neck approach.

[Microneurosurgical treatment of massive tuberculum sellae meningiomas].

Objective: To summarize the characteristics of the pathological anatomy and blood supply model of massive tuberculum sellae meningiomas (MTSM) and explore its corresponding microneurosurgical strategies.

Methods: The clinical data of 16 MTSM patients were reviewed retrospectively. From January 1998 to January 2010, according to their unique pathological anatomy and blood supply model, all patients underwent microneurosurgical removal with induced hypotension through tumor corridor by the bi-subfrontal anterior longitudinal fission (n = 14), right frontolateral approach (n = 1) and pterional approach (n = 1).