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Leptomeningeal

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https://www.readbyqxmd.com/read/28653027/primary-cutaneous-marginal-zone-lymphoma-with-leptomeningeal-involvement-and-a-durable-response-to-rituximab
#1
Pooja Virmani, Klaus Busam, Patricia L Myskowski, Amy Yang, Cynthia Magro, Steven Horwitz
No abstract text is available yet for this article.
July 2017: JAAD Case Reports
https://www.readbyqxmd.com/read/28652147/unusual-high-grade-features-in-pediatric-diffuse-leptomeningeal-glioneuronal-tumor-comparison-with-a-typical-low-grade-example
#2
Katherine E Schwetye, Akash Kansagra, James McEachern, Robert E Schmidt, Karen Gauvain, Sonika Dahiya
Diffuse leptomeningeal glioneuronal tumor, a recent addition to the WHO classification system, typically presents in the pediatric population with signs and symptoms related to elevated intracranial pressure and imaging characteristics that may mimic infectious etiologies. The tumor is usually low-grade and tends to harbor BRAF rearrangement/duplication in up to 75% of cases, BRAF V600E mutation in a smaller subset of cases, and loss of chromosomal arm 1p in approximately 50-60% of cases, with ~20% of those showing loss of both 1p and 19q (codeletion)...
June 23, 2017: Human Pathology
https://www.readbyqxmd.com/read/28646895/stereotactic-radiosurgery-versus-whole-brain-radiotherapy-after-intracranial-metastasis-resection-a-systematic-review-and-meta-analysis
#3
REVIEW
Nayan Lamba, Ivo S Muskens, Aislyn C DiRisio, Louise Meijer, Vanessa Briceno, Heba Edrees, Bilal Aslam, Sadia Minhas, Joost J C Verhoeff, Catharina E Kleynen, Timothy R Smith, Rania A Mekary, Marike L Broekman
BACKGROUND: In patients with one to three brain metastases who undergo resection, options for post-operative treatments include whole-brain radiotherapy (WBRT) or stereotactic radiosurgery (SRS) of the resection cavity. In this meta-analysis, we sought to compare the efficacy of each post-operative radiation modality with respect to tumor recurrence and survival. METHODS: Pubmed, Embase and Cochrane databases were searched through June 2016 for cohort studies reporting outcomes of SRS or WBRT after metastasis resection...
June 24, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28643544/varicella-zoster-meningovasculitis-in-a-multiple-sclerosis-patient-treated-with-natalizumab
#4
Patricia Mulero, Cristina Auger, Laura Parolin, Elena Fonseca, Manuel Requena, Jordi Rio, Mar Tintoré, Alex Rovira, Xavier Montalban
BACKGROUND: Natalizumab is associated with the occasional occurrence of progressive multifocal leukoencephalopathy (PML). While natalizumab-associated PML is well described in multiple sclerosis (MS) patients, herpes and other infections have rarely been reported. OBJECTIVE: To report a case of varicella-zoster (VZV) meningovasculitis in a MS patient treated with natalizumab. METHODS: Case report. RESULTS: A 48-year-old woman diagnosed with MS in treatment with natalizumab (Expanded Disability Status Scale (EDSS): 4...
June 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28641772/susac-syndrome-a-differential-diagnosis-of-white-matter-lesions
#5
Mariano Marrodan, Jorge Correale, Lucas Alessandro, Mariela Amaya, Maria Eugenia Fracaro, Alejandro Alfredo Köhler, Marcela Fiol
INTRODUCTION: Susac Syndrome is an autoimmune endotheliopathy affecting capillaries and precapillary arterioles of the brain, inner ear and retina. The classic symptom triad includes visual disturbances, hypoacusia, and encephalopathy, but is rarely fully manifest at onset. The syndrome typically follows an active fluctuating monophasic course. Typical imaging findings on brain magnetic resonance show central fiber microischemias/microinfarctions of the corpus callosum known as "snow balls", as well as lineal infarcts and upper callosal fiber involvement...
July 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28640708/medulloblastoma-from-myth-to-molecular
#6
Vijay Ramaswamy, Michael D Taylor
Current therapies for medulloblastoma were introduced primarily in the 1980s and consist of predominantly cytotoxic, nontargeted approaches. Mortality from medulloblastoma remains significant. In addition, many survivors suffer from severe treatment-related effects of radiation and cytotoxic chemotherapy. Further intensification of nonspecific therapy is unlikely to offer additional benefits, because survival rates have reached a plateau. Recent publications in medulloblastoma have revolved largely around the recognition that medulloblastoma per se does not exist, but rather, that there are a group of histologically similar but clinically and molecularly distinct entities that have been grouped under that rubric...
June 22, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28640707/response-assessment-in-neuro-oncology-clinical-trials
#7
Patrick Y Wen, Susan M Chang, Martin J Van den Bent, Michael A Vogelbaum, David R Macdonald, Eudocia Q Lee
Development of novel therapies for CNS tumors requires reliable assessment of response and progression. This requirement has been particularly challenging in neuro-oncology for which contrast enhancement serves as an imperfect surrogate for tumor volume and is influenced by agents that affect vascular permeability, such as antiangiogenic therapies. In addition, most tumors have a nonenhancing component that can be difficult to accurately quantify. To improve the response assessment in neuro-oncology and to standardize the criteria that are used for different CNS tumors, the Response Assessment in Neuro-Oncology (RANO) working group was established...
June 22, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28637017/diagnostic-and-prognostic-values-of-cerebrospinal-fluid-cyfra-21-1-in-patients-with-leptomeningeal-carcinomatosis
#8
Jae-Won Hyun, Ji Hyun Park, Boo Gil Kang, Eun Young Park, Boram Park, Jungnam Joo, Jong Kuk Kim, Su-Hyun Kim, Jee Hyang Jeong, Hyang Woon Lee, Kee Duk Park, Kyung Gyu Choi, Sang-Hyun Hwang, Ho-Shin Gwak, Ho Jin Kim
OBJECTIVES: To investigate the diagnostic and prognostic values of cerebrospinal fluid (CSF) CYFRA 21-1 in patients with leptomeningeal carcinomatosis (LMC). METHODS: Concentration of CSF CYFRA 21-1 was detected using electro-chemiluminescent immunoassay. The difference in level of CYFRA 21-1 between 61 patients with LMC and 200 patients with other neurological disease was evaluated, and diagnostic performance of CSF CYFRA 21-1 was investigated. In LMC patients treated with ventriculo-lumbar perfusion (VLP) chemotherapy, prognostic performance of CSF CYFRA 21-1 was evaluated...
June 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28631645/primary-leptomeningeal-primitive-neuroectodermal-tumor-a-difficult-entity-to-diagnose
#9
Jyothy Sehgal, Murthy Murali Krishna Jagarlapudi, Murthy V R K Tenneti, Syed Ameer Basha, Sundaram Challa
A 25-year-old male presented with difficulty in walking, loss of vision, and seizures. A clinical possibility of craniospinal meningeal pathology was considered. On computed tomography (CT) scan and magnetic resonance imaging, there was an enhancement of leptomeninges with few ring-enhancing lesions in both frontal lobes and right frontoparietal region. He was evaluated for low backache and occipital headache 2½ years earlier and was found to have communicating hydrocephalus on CT scan. He underwent ventriculoperitoneal shunt and was followed up with CT scans...
April 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28627959/two-cases-of-primary-leptomeningeal-melanomatosis-mimicking-subacute-meningitis
#10
Sabina Aslan, Rahsan Gocmen, Nazire Pınar Acar, Farid Khasiyev, Ekim Gumeler, Figen Soylemezoglu, Aslı Tuncer, Ethem Murat Arsava, Mehmet Akif Topçuoglu, Isin Unal Cevik
Primary involvement of leptomeninges with melanocytic tumours is rarely seen and its diagnosis is challenging. Here we summarise two cases of primary leptomeningeal melanomatosis presenting as subacute meningitis. Both cases have pleocytosis and high protein on cerebrospinal fluid analysis, and demonstrated atypical cells on cytology. On magnetic resonance imaging, there is diffuse leptomeningal thickening and avid enhancement of intracranial and intraspinal leptomeninges. One of them demonstrates T1 shortening due to magnetic effects of melanin, the other case is amelanotic and shows hypointensity on precontrast T1-weighted images...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28625652/symptomatic-leptomeningeal-metastasis-improvement-with-nivolumab-in-advanced-non-small-cell-lung-cancer-patient
#11
Maria Gion, Jordi Remon, Caroline Caramella, Jean-Charles Soria, Benjamin Besse
Leptomeningeal metastasis (LM) is reported in 3.8% of non-small-cell lung cancer (NSCLC) patients, more frequently in adenocarcinoma, and it correlates with poor prognosis. Data regarding the activity of immune checkpoint inhibitors in LM is lacking. We present a case report about the efficacy of nivolumab in a patient with advanced NSCLC and symptomatic LM.
June 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28625644/treatment-options-for-egfr-mutant-nsclc-with-cns-involvement-can-patients-bloom-with-the-use-of-next-generation-egfr-tkis
#12
REVIEW
Chee-Seng Tan, Byoung Chul Cho, Ross A Soo
With the use of EGFR TKIs, patient survival is now prolonged and as a consequence, a higher chance of development of CNS metastases has been observed during the course of the disease. CNS metastases remains a therapeutically challenging subset of patient to treat owing to the blood-brain barrier (BBB). Prior to routine EGFR mutation testing, surgical resection, stereotactic radiosurgery and/or whole brain radiation therapy (WBRT) were the main treatment options whereas treatment options for patients with leptomeningeal metastases (LM) included intra-thecal chemotherapy, WBRT, and ventriculo-peritoneal shunting...
June 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28620571/leptomeningeal-carcinomatosis-in-recurrent-non-small-cell-lung-cancer-a-case-report-and-review-of-current-treatment-modalities
#13
Saqib Abbasi, Elias Moussaly, Jean P Atallah
Leptomeningeal carcinomatosis (LC) is an uncommon sequelae of non-small cell lung cancer. The treatment modalities for LC have historically been limited with an overall poor prognosis. This case report outlines a 76-year-old female who presented with recurrence of non-small cell lung cancer as LC. LC is difficult to treat, and options include radiation, chemotherapy (systemic and intrathecal), as well as targeted therapies. This case outlines a unique approach and reviews the current literature on the effectiveness of these options in non-small cell lung cancer...
May 12, 2017: Curēus
https://www.readbyqxmd.com/read/28606923/detection-of-driver-and-resistance-mutations-in-leptomeningeal-metastases-of-nsclc-by-next-generation-sequencing-of-cerebrospinal-fluid-circulating-tumor-cells
#14
Ben-Yuan Jiang, Yang-Si Li, Wei-Bang Guo, Xu-Chao Zhang, Zhihong Chen, Jian Su, Wenzhao Zhong, Xue-Ning Yang, Jinji Yang, Yang W Shao, Biao Huang, Yan-Hui Liu, Qing Zhou, Hai-Yan Tu, Hua-Jun Chen, Zhen Wang, Chongrui Xu, Bin-Chao Wang, Shu-Yu Wu, Cun-Yi Gao, Xian Zhang, Yi-Long Wu
<p>Leptomeningeal metastases (LM) are more common in non-small cell lung cancer (NSCLC) with EGFR mutations. The diagnosis is difficult by traditional imaging only, and leads to poor understanding of resistance mechanisms of LM.</p> <br />Experimental Design: <p>We compared the CellSearch Assay™, the Thinprep cytologic test (TCT), and brain magnetic resonance imaging (MRI) in 21 NSCLC patients with suspected LM. Next-Generation sequencing that included 416 cancer-associated genes was also performed on cerebrospinal fluid circulating tumor cells (CSFCTCs) of 19 patients...
June 12, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28605024/a-unique-type-of-birth-trauma-mistaken-for-abuse
#15
Carolyn V Isaac, Jered B Cornelison, Rudolph J Castellani, Joyce L deJong
Pediatric abusive head trauma is a challenging subject across many disciplines. Of particular importance is the identification of mimics of abuse, so cause and manner of death can be properly assigned. We present the case of suspected child abuse involving an infant who presented unresponsive to the hospital with hypoglycemia, hypothermia, and bilateral parietal fractures. An autopsy revealed fractures associated with organizing scalp hemorrhage and gross leptomeningeal congestion and hemorrhage. The fractures were circular with external displacement, rounded margins, and subperiosteal new bone formation indicative of healing...
June 12, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28603913/a-common-complication-of-myelofibrosis-presenting-as-a-rare-finding-in-cerebrospinal-fluid-cytology
#16
Roberto Ruiz-Cordero, Jeffrey L Jorgensen, Savitri Krishnamurthy, Gene Landon
Herein, we present a rare case of intracranial extramedullary hematopoiesis (EMH) diagnosed by cerebrospinal fluid (CSF) cytology and describe the clinical presentation, radiologic, and pathologic findings. A 65 year-old man with a history of progressing primary myelofibrosis was admitted for headaches and right facial numbness. A brain MRI revealed focal abnormalities that were suspicious for leptomeningeal involvement of acute leukemia. Cytologic examination of CSF demonstrated a hypercellular specimen composed of hematopoietic cells including few blasts, as well as maturing red blood cells and granulocytic cells...
June 11, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28599306/panobinostat-a-histone-deacetylase-inhibitor-suppresses-leptomeningeal-seeding-in-a-medulloblastoma-animal-model
#17
Ji Hoon Phi, Seung Ah Choi, Pil Ae Kwak, Ji Yeoun Lee, Kyu-Chang Wang, Do Won Hwang, Seung-Ki Kim
Leptomeningeal seeding is a strong negative prognostic factor for medulloblastoma (MB). The mechanism of leptomeningeal seeding is unclear but may involve epigenetic regulation. In this study, we evaluated the feasibility of a histone deacetylase (HDAC) inhibitor, panobinostat, in the suppression of MB leptomeningeal seeding.Panobinostat decreased the cell viability and proliferation, inducing cell cycle arrest and apoptosis in MB cell lines. The migration and adhesion capabilities were significantly decreased...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28585389/an-11-year-old-boy-with-a-leptomeningeal-tumor
#18
Cyril Habougit, Fabien Forest, Claire Boutet, Catherine Douchet, Jean-Louis Stephan, Marie-Laure Stachowicz, Francois Vassal, Michel Péoc'h
No abstract text is available yet for this article.
July 2017: Brain Pathology
https://www.readbyqxmd.com/read/28570324/neurologic-complications-of-lymphoma-leukemia-and-paraproteinemias
#19
Michelle L Mauermann
PURPOSE OF REVIEW: This article reviews the spectrum of neurologic complications associated with lymphoma, leukemia, and paraproteinemic disorders. While leptomeningeal metastasis is the most common complication of lymphoma and leukemia and peripheral neuropathy is the most common complication of paraproteinemic disorders, clinicians need to be familiar with the diverse neurologic complications of these disorders. RECENT FINDINGS: Lymphomatous nervous system involvement can be difficult to diagnose, especially when it is the presenting symptom...
June 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28561683/breast-cancer-in-the-central-nervous-system-multidisciplinary-considerations-and-management
#20
Nancy U Lin, Laurie E Gaspar, Riccardo Soffietti
Breast cancer is the second most common primary tumor associated with central nervous system (CNS) metastases. Patients with metastatic HER2-positive or triple-negative (estrogen receptor (ER)-negative, progesterone receptor (PR)-negative, HER2-negative) breast cancer are at the highest risk of developing parenchymal brain metastases. Leptomeningeal disease is less frequent but is distributed across breast cancer subtypes, including lobular breast cancer. Initial treatment strategies can include surgery, radiation, intravenous or intrathecal chemotherapy, and/or targeted approaches...
2017: American Society of Clinical Oncology Educational Book
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