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https://www.readbyqxmd.com/read/28816142/vorinostat-and-concurrent-stereotactic-radiosurgery-for-non-small-cell-lung-cancer-brain-metastases-a-phase-1-dose-escalation-trial
#1
Clara Y H Choi, Heather A Wakelee, Joel W Neal, Mary C Pinder-Schenck, Hsiang-Hsuan Michael Yu, Steven D Chang, John R Adler, Leslie A Modlin, Griffith R Harsh, Scott G Soltys
PURPOSE: To determine the maximum tolerated dose (MTD) of vorinostat, a histone deacetylase inhibitor, given concurrently with stereotactic radiosurgery (SRS) to treat non-small cell lung cancer (NSCLC) brain metastases. Secondary objectives were to determine toxicity, local failure, distant intracranial failure, and overall survival rates. MATERIALS AND METHODS: In this multicenter study, patients with 1 to 4 NSCLC brain metastases, each ≤2 cm, were enrolled in a phase 1, 3 + 3 dose escalation trial...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28803175/seeding-of-abdomen-with-primary-intracranial-hemangiopericytoma-by-a-ventriculoperitoneal-shunt-case-report
#2
Kelly Bridges, Rebecca Sauerwein, Marjorie Grafe, Vassiliki Liana Tsikitis, Aaron Halfpenny, Ahmed Raslan
BACKGROUND: Ventriculoperitoneal shunt (VPS) placement has been implicated in extraneural metastasis of many primary central nervous system tumors. Reported cases include, but are not limited to, medulloblastoma, germ cell tumor, astrocytoma, oligodendroglioma, lymphoma, ependymoma, melanoma, and choroid plexus tumors. However, a literature review reveals no reported cases of extraneural metastasis of solitary fibrous tumor/hemangiopericytoma (SFT/HPC). CASE DESCRIPTION: Here we report the case of a 34-year-old man with recurrent intracranial malignant SFT/HPC who had undergone surgical tumor resection and subsequent placement of a VPS for obstructive hydrocephalus in 2004...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28802798/most-common-sites-on-mri-of-intracranial-neoplastic-leptomeningeal-disease
#3
J Matthew Debnam, Rory R Mayer, T Linda Chi, Leena Ketonen, Jeffrey S Weinberg, Wei Wei, Morris D Groves, Nandita Guha-Thakurta
Neoplastic leptomeningeal disease (LMD) represents infiltration of the leptomeninges by tumor cells. Knowledge of the frequencies of locations of LMD on MRI may assist in early detection, help elucidate the process of leptomeningeal spread of cancer and understand how LMD affects the central nervous system. Our goal was to identify intracranial sites of neoplastic LMD predilection on MRI in patients with cytologically-proven LMD. The presence of FLAIR signal hyperintensity and T1-weighted post-contrast enhancement in the sulci of the supratentorial compartment and cerebellum and enhancement of the cranial nerves (CNs), basal cisterns, pituitary stalk, and ependymal surface of the lateral ventricles, as well as the presence of parenchymal metastasis were recorded...
August 9, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28797981/rhabdoid-meningioma-arising-concurrent-in-pulmonary-and-intracranial-with-a-rare-malignant-clinical-progression-case-report-and-literature-review
#4
Peng Zhao, Ning Li, Jinfeng Cao, Xiangtao Lin, Changhu Liang
BACKGROUND: Rhabdoid meningioma (RM) is an unusual variant of meningioma, classified as WHO grade III. Although its recurrence is common, extracranial metastasis is rare and usually misdiagnosed. The transfer mechanism and pathway are ambiguous; once it develops, there is a poor prognosis and no effective management. The present case is the first report on concurrent intracranial and pulmonary RM with rapid and widespread metastasis. We hope this report can be a helpful reference for clinicians and radiologists...
August 7, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28792797/magnetic-resonance-imaging-and-clinical-findings-associated-with-choroid-plexus-spinal-cord-drop-metastases
#5
Carmen L Yeamans, Rodrigo Gutierrez-Quintana, Allison Haley, Catherine G Lamm
A 5 yr old castrated male whippet presented with a unique presentation of ambulatory paraparesis and subsequent diagnosis of primary intracranial choroid plexus carcinoma, with metastases to the cervical, thoracic, lumbar, and sacral spinal cord segments. Magnetic resonance imaging was performed initially of the thoracolumbar vertebral column and was followed by MRI sequences of the brain for confirmation of the presence of a primary intracranial tumor. The dog was euthanized immediately following diagnostic imaging due to the severity of clinical signs and poor prognosis...
August 9, 2017: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/28754641/improving-the-prognostic-value-of-disease-specific-graded-prognostic-assessment-ds-gpa-model-for-renal-cell-carcinoma-by-incorporation-of-cumulative-intracranial-tumor-volume-citv
#6
Mir Amaan Ali, Brian R Hirshman, Bayard Wilson, Alexander J Schupper, Rushikesh Joshi, James A Proudfoot, Steven J Goetsch, John F Alksne, Kenneth Ott, Hitoshi Aiyama, Osamu Nagano, Bob S Carter, Veronica Chiang, Toru Serizawa, Masaaki Yamamoto, Clark C Chen
BACKGROUND: We tested the prognostic value of cumulative intracranial tumor volume (CITV) in the context of ds-GPA model for renal cell carcinoma (RCC) patients with brain metastasis (BM) treated with stereotactic radiosurgery (SRS). METHODS: Patient and tumor characteristics were collected from RCC cohorts with newly BM who underwent SRS. Univariable and multivariable logistic regression model was used to test the prognostic value of CITV, Karnofsky Performance Score (KPS), and the number of BM...
July 25, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28743829/management-of-intracranial-melanomas-in-the-era-of-precision-medicine
#7
REVIEW
Grace J Young, Wenya Linda Bi, Winona W Wu, Tanner M Johanns, Gavin P Dunn, Ian F Dunn
Melanoma is the most lethal of skin cancers, in part because of its proclivity for rapid and distant metastasis. It is also potentially the most neurotropic cancer in terms of probability of CNS metastasis from the primary lesion. Despite surgical resection and radiotherapy, prognosis remains guarded for patients with brain metastases. Over the past five years, a new domain of personalized therapy has emerged for advanced melanoma patients with the introduction of BRAF and other MAP kinase pathway inhibitors, immunotherapy, and combinatory therapeutic strategies...
July 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28741887/linac-based-stereotactic-radiation-therapy-for-canine-non-lymphomatous-nasal-tumours-29-cases-2013-2016
#8
T L Gieger, M W Nolan
Twenty-nine dogs were treated with linac-based stereotactic radiation therapy (SRT) for non-lymphomatous nasal tumours. Only dogs with a follow-up time >365 days were included in this retrospective analysis. No dogs had evidence of distant metastasis at diagnosis. Treatment was planned and a total of 30 Gy in 3 daily 10 Gy fractions was delivered using intensity-modulation, cone-beam CT-based image guidance and a robotic treatment couch. Clinical signs improved in all cases. Nineteen dogs had CT scans 3-4 months post-SRT and all had partial or complete tumour response...
July 25, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/28735139/cumulative-intracranial-tumor-volume-and-number-of-brain-metastasis-as-predictors-of-developing-new-lesions-after-stereotactic-radiosurgery-for-brain-metastasis
#9
Mayur Sharma, Xuefei Jia, Manmeet Ahluwalia, Gene H Barnett, Michael A Vogelbaum, Samuel T Chao, John H Suh, Erin S Murphy, Jennifer S Yu, Lilyana Angelov, Alireza M Mohammadi
INTRODUCTION: The aim of our study was to identify risk factors associated with early distant radiographic progression in patients undergoing stereotactic radiosurgery (SRS) for brain metastases (BM). METHODS: Following IRB approval, data of 1427 patients (4283 BM lesions) who were treated using SRS at Cleveland Clinic from 2000-2012 were collected. Local tumor progression (LTP), distant tumor progression (DTP) and radiographic radiation necrosis (RN) were the primary end points...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28735121/survival-patterns-of-5750-srs-treated-brain-metastasis-patients-as-a-function-of-the-number-of-lesions
#10
Mir Amaan Ali, Brian R Hirshman, Bayard Wilson, Kate T Carroll, James A Proudfoot, Steven J Goetsch, John F Alksne, Kenneth Ott, Hitoshi Aiyama, Osamu Nagano, Bob S Carter, Gerald Fogarty, Angela Hong, Toru Serizawa, Masaaki Yamamoto, Clark C Chen
BACKGROUND: The number of brain metastases (BM) plays an important role in the decision between stereotactic radiosurgery (SRS) and whole brain radiation therapy (WBRT). METHODS: We analyzed the survival of 5750 SRS-treated BM patients as a function of BM number. Survival analyses were performed using Kaplan-Meier analysis as well as univariate and multivariate Cox proportional hazards models. RESULTS: BM patients were first categorized as those with 1, 2-4, and 5-10 BM based on the scheme proposed by Yamamoto et al (Lancet Oncology 2014)...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28731197/metastatic-gallbladder-carcinoma-in-meningioma-a-case-report
#11
Burak Eren, Feyza Karagoz Guzey, Ilker Gulec, Azmi Tufan
Metastases from tumors to systemic cancers are rare. The most common intracranial recipient tumor is meningioma. Metastasis from gallbladder cancer has been previously reported from only one patient during autopsy. We present the case of a 72-year-old woman who underwent surgery for right frontal skull base meningioma.The tumor was completely removed. Histological specimens showed gallbladder carcinomatous metastasis with diffuse neuroendocrine differentiation in meningothelial meningioma. The Ki-67 proliferation index of the meningioma was 3%...
June 2, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28730760/targeted-therapy-with-anaplastic-lymphoma-kinase-inhibitors-in-non-small-cell-lung-cancer-even-with-brain-metastasis
#12
Bekir Muhammet Hacioglu, Osman Kostek, Bulent Erdogan, Sernaz Uzunoglu, Irfan Cicin
The incidence of brain metastases has increased as a result of improved systemic disease control and advances in imaging. Brain metastasis can occur approximately in 25-40% of the patients with non-small cell lung cancer (NSCLC) and it is a frequent cause of death. Stereotactic radiosurgery, whole-brain radiotherapy (WBRT) or surgical resection are the local treatment modalities for brain metastases which are feasible either alone, in combination, or as sequential treatments. Resistance to systemic therapy for brain metastasis poses significant clinical problems...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28728749/numb-chin-with-mandibular-pain-or-masticatory-weakness-as-indicator-for-systemic-malignancy-a-case-series-study
#13
Shin-Yu Lu, Shu-Hua Huang, Yen-Hao Chen
BACKGROUND/PURPOSE: Numb chin syndrome (NCS) is a critical sign of systemic malignancy; however it remains largely unknown by clinicians and dentists. The aim of this study was to investigate NCS that is more often associated with metastatic cancers than with benign diseases. METHODS: Sixteen patients with NCS were diagnosed and treated. The oral and radiographic manifestations were assessed. RESULTS: Four (25%) of 16 patients with NCS were affected by nonmalignant diseases (19% by medication-related osteonecrosis of the jaw and 6% by osteopetrosis); yet 12 (75%) patient conditions were caused by malignant metastasis, either in the mandible (62%) or intracranial invasion (13%)...
July 17, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28725519/intracranial-hemangiopericytomas-recurrence-metastasis-and-radiotherapy
#14
Ankur R Patel, Bruno C Flores, Vin Shen Ban, Kimmo J Hatanpaa, Bruce E Mickey, Samuel L Barnett
Background  Intracranial hemangiopericytomas (HPCs) are characterized by high recurrence rates and extracranial metastases. Radiotherapy provides an adjunct to surgery, but the timing of therapy and the patients most likely to benefit remain unclear. Methods  A retrospective review of 20 patients with HPC treated at the University of Texas Southwestern Medical Center between 1985 and 2014 was conducted. Recurrence and metastasis rates along with overall survival (OS) were characterized based on therapeutic approach and tumor pathology using Kaplan-Meier and Cox regression analyses...
August 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28689343/a-rare-case-report-and-literatures-review-on-primary-germinoma-in-cerebellar-hemisphere
#15
Lei Wang, Wanchun Zhu, Xiang Li, Jintao He, Chunde Li, Jian Gong
OBJECT: Primary intracranial germinoma is a rare intracranial lesion which accounts for approximately 0.5-2% of all intracranial tumors. Generally, primary intracranial germinoma occurs in the midline structures of the central nervous system of a pediatric patient. Only four cases of primary cerebellar germinomas with poor prognosis have been previously reported. The object of this paper is to introduce a case of germinoma originating from cerebellar hemisphere and to discuss its clinical features...
July 8, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28687377/postoperative-stereotactic-radiosurgery-compared-with-whole-brain-radiotherapy-for-resected-metastatic-brain-disease-ncctg-n107c-cec%C3%A2-3-a-multicentre-randomised-controlled-phase-3-trial
#16
Paul D Brown, Karla V Ballman, Jane H Cerhan, S Keith Anderson, Xiomara W Carrero, Anthony C Whitton, Jeffrey Greenspoon, Ian F Parney, Nadia N I Laack, Jonathan B Ashman, Jean-Paul Bahary, Costas G Hadjipanayis, James J Urbanic, Fred G Barker, Elana Farace, Deepak Khuntia, Caterina Giannini, Jan C Buckner, Evanthia Galanis, David Roberge
BACKGROUND: Whole brain radiotherapy (WBRT) is the standard of care to improve intracranial control following resection of brain metastasis. However, stereotactic radiosurgery (SRS) to the surgical cavity is widely used in an attempt to reduce cognitive toxicity, despite the absence of high-level comparative data substantiating efficacy in the postoperative setting. We aimed to establish the effect of SRS on survival and cognitive outcomes compared with WBRT in patients with resected brain metastasis...
August 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28684151/dejerine-roussy-syndrome-from-thalamic-metastasis-treated-with-stereotactic-radiosurgery
#17
Rajal A Patel, James P Chandler, Sarika Jain, Mahesh Gopalakrishnan, Sean Sachdev
Dejerine-Roussy syndrome (central thalamic pain) is associated with damage to the ventral posterior sensory nuclei of the thalamus. We report a patient with breast cancer who developed contralateral hemibody paresthesias and dysesthesias. MR imaging revealed limited volume intracranial metastatic disease including a right posterior thalamic lesion. Stereotactic radiosurgery was utilized to selectively treat the lesion while preserving the remaining thalamus. Two months following treatment, the patient reported vastly improved to complete resolution of her sensory symptoms...
July 3, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28677755/proteomic-analysis-and-comparison-of-intra%C3%A2-and-extracranial-cerebral-atherosclerosis-responses-to-hyperlipidemia-in-rabbits
#18
Zhi-Lan Tu, Bo Yu, Dong-Ya Huang, Rajeev Ojha, Shu-Kui Zhou, He-Di An, Rong Liu, Cui Du, Nan Shen, Jian-Hui Fu, Shuang-Xing Hou
The present study aimed to investigate protein expression levels of intra‑ and extracranial atherosclerosis in rabbits following administration of a high‑fat diet. Rabbits were randomly divided into control (group A; n=9) and high‑fat diet (group B; n=9) groups. At week 12, tissues were sectioned from the common carotid artery (CCA) and middle cerebral artery (MCA). Pathological analysis was performed. Differential protein expression levels were examined by 2‑D gel electrophoresis (2‑DE) and mass spectrometry (MS) analysis and validated by western blotting...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28667686/pulsatile-crizotinib-treatment-for-brain-metastasis-in-a-patient-with-non-small-cell-lung-cancer
#19
S Wang, J Chen, Z Xie, L Xia, W Luo, J Li, Q Li, Z Yang
WHAT IS KNOWN AND OBJECTIVE: Anaplastic lymphoma kinase (ALK)-rearranged non-small-cell lung cancer (NSCLC) is a distinct subtype with patients showing peculiar clinicopathological features and dramatic responses to the ALK tyrosine kinase inhibitor crizotinib. Patients with this cancer variant have a dismal prognosis and limited treatment options when it has progressed to intracranial metastasis because of inadequate drug penetration into the central nervous system (CNS). Factors associated with response to TKI therapy have been reported to include pharmacokinetic and biodynamic resistance phenomena...
June 30, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28659546/focused-ultrasound-treatment-present-and-future
#20
Keiichi Abe, Takaomi Taira
The discovery that ultrasound waves could be focused inside the skull and heated to high temperatures at a focal point goes back to 1944. However, because the skull causes the ultrasound waves to attenuate and scatter, it was believed that application of this technology would be difficult, and that it would be impossible to use this approach in the surgical treatment of intracranial diseases. Eventually, magnetic resonance image guided focused ultrasound (MRgFUS) surgery began being used to treat uterine fibroids, breast cancer and bone metastasis and locally confined prostate cancer...
June 28, 2017: Neurologia Medico-chirurgica
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