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[PMID]: 29480846
[Au] Autor:Cai J; Li W; Du J; Xu N; Gao P; Zhou J; Li X
[Ad] Address:Department of Radiology, Beijing Tiantan Hospital affiliated to Capital Medical University.
[Ti] Title:Supratentorial intracerebral cerebellar liponeurocytoma: A case report and literature review.
[So] Source:Medicine (Baltimore);97(2):e9556, 2018 Jan.
[Is] ISSN:1536-5964
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:RATIONALE: Cerebellar liponeurocytoma is a rare tumor of the central nervous system (CNS) characterized by low proliferation but high likelihood of recurrence. Because of its rarity and the paucity of systematic follow-up, the biological behaviors and clinical features of this tumor are still poorly understood. We herein reported a case of cerebellar liponeurocytoma originating in the cerebral hemisphere. PATIENT CONCERNS: A 11-year-old male with intermittent headache, nausea, and vomiting. The first computed tomography revealed a large mass in the right cerebral hemisphere. He was transferred to our institution for neurosurgical treatment. DIAGNOSIS: Magnetic resonance imaging showed a large cystic-solid mass in the right frontal lobe with obvious contrast enhancement. Histopathological examinations showed sheets of isomorphic small neoplastic cells with clear cytoplasm and focal lipomatous differentiation. On immunohistochemistry, tumor cells were positive for synaptophysin, microtubule-associated protein 2, and neuronal nuclei antigen. INTERVENTIONS: The patient was performed a right fronto-parietal craniotomy, and gross total resection of the tumor was achieved without adjuvant therapy. OUTCOMES: No clinical or neuroradiological evidence of recurrence or residual of the tumor was found 6 years and 2 months after initial surgery. LESSONS: Cerebellar liponeurocytoma developing in supratentorial cerebral hemisphere was first reported in the present study. The radiological and histopathological features may be useful in differentiating this rare tumor from other tumors at similar locations. A change in the nomenclature of cerebellar liponeurocytomas should be considered in future World Health Organization (WHO) classifications.
[Mh] MeSH terms primary: Cerebellar Neoplasms/diagnostic imaging
Cerebellar Neoplasms/surgery
Neurocytoma/diagnostic imaging
Neurocytoma/surgery
Supratentorial Neoplasms/diagnostic imaging
Supratentorial Neoplasms/surgery
[Mh] MeSH terms secundary: Cerebellar Neoplasms/pathology
Child
Diagnosis, Differential
Humans
Male
Neurocytoma/pathology
Supratentorial Neoplasms/pathology
Terminology as Topic
[Pt] Publication type:CASE REPORTS; JOURNAL ARTICLE; REVIEW
[Em] Entry month:1803
[Cu] Class update date: 180305
[Lr] Last revision date:180305
[Js] Journal subset:AIM; IM
[Da] Date of entry for processing:180227
[St] Status:MEDLINE
[do] DOI:10.1097/MD.0000000000009556

  2 / 731 MEDLINE  
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[PMID]: 29499603
[Au] Autor:Wang M; Zhou P; Liu X; Jiang S
[Ad] Address:Department of Neurosurgery, West China Hospital of Sichuan University, Sichuan, China.
[Ti] Title:In Reply to Letter to the Editor Regarding "Clinical Features, Treatment, and Long-Term Outcomes of Central Neurocytoma: 20-Year Experience at a Single Center".
[So] Source:World Neurosurg;111:434, 2018 Mar.
[Is] ISSN:1878-8769
[Cp] Country of publication:United States
[La] Language:eng
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180303
[Lr] Last revision date:180303
[St] Status:In-Data-Review

  3 / 731 MEDLINE  
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[PMID]: 29499602
[Au] Autor:Wang Y; Gao X; Ge Y
[Ad] Address:Department of Neurosurgery, The First Affiliated Hospital of AnHui Medical University, HeFei, People's Republic of China. Electronic address: wangyi0767@yeah.net.
[Ti] Title:Letter to the Editor Regarding "Clinical Features, Treatment, and Long-Term Outcomes of Central Neurocytoma: 20-Year Experience at a Single Center".
[So] Source:World Neurosurg;111:433, 2018 Mar.
[Is] ISSN:1878-8769
[Cp] Country of publication:United States
[La] Language:eng
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180303
[Lr] Last revision date:180303
[St] Status:In-Data-Review

  4 / 731 MEDLINE  
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[PMID]: 29378347
[Au] Autor:Chen F; Jin R; Wu X; Dong Z; Chen D
[Ad] Address:Department of Neurosurgery, First Hospital of Jilin University, 71 Xinmin Avenue, Changchun 130021. China.
[Ti] Title:Extraventricular neurocytoma in the left frontal lobe: A case report and literature review.
[So] Source:World Neurosurg;, 2018 Jan 25.
[Is] ISSN:1878-8769
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:BACKGROUND: Neurocytoma is a rare brain neoplasm of neuroepithelial origin that predominantly occurs in the ventricular system adjacent to the interventricular foramen and septum pellucidum. However, extraventricular neurocytoma is an extremely rare entity with poor clinical, radiological, and histopathological characterization. Herein, we report a case of an extraventricular parafalcine neurocytoma in the left frontal lobe. OBJECTIVES: This study will compile and examine reported cases of extraventricular neurocytoma in an attempt to provide an up-to-date summary of the condition. METHODS: A literature search was performed using PubMed with specific key terms, inclusion criteria, and exclusion criteria. Selected case studies and case series were then compared, and statistical analyses were performed where appropriate. We report a 59-year-old woman presenting with weakness in the right leg and urinary incontinence. Physical examination showed muscle strength of grade 3/5 in the right lower extremity. Brain magnetic resonance imaging showed a parafalcine mass in the left frontal lobe, with perilesional edema; the cerebral falx and lateral ventricle were shifted due to the compression. Gross total resection was performed. RESULTS: Histopathological examination revealed a neurocytoma. Immunohistochemical staining showed diffuse positivity for synaptophysin. MIB-1 staining for Ki67 antibody showed a labeling index of 20%. No adjuvant radiation or chemotherapy was administered. Brain computed tomography performed at a 3-month follow-up showed no signs of recurrence. Extraventricular neurocytoma occurring in the brain parenchyma is an exceedingly rare central nervous system tumor. The clinical and radiological manifestations are nonspecific. CONCLUSION: The diagnosis depends on histopathological and immunohistochemical examination. Surgical resection should be the first-choice treatment.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1801
[Cu] Class update date: 180129
[Lr] Last revision date:180129
[St] Status:Publisher

  5 / 731 MEDLINE  
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[PMID]: 29185377
[Au] Autor:Orjuela-Rojas JM; Sosa-Ortiz AL; Díaz-Victoria AR; Marrufo Melendez OR; Leyva Townsend N
[Ad] Address:a Neuropsychiatry Unit , National Institute of Neurology and Neurosurgery , Mexico City , Mexico.
[Ti] Title:The painter from Sinaloa: artistic analysis of a case of spatial agnosia and neglect of visual shapes.
[So] Source:Neurocase;23(5-6):304-313, 2017 Oct - Dec.
[Is] ISSN:1465-3656
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:Paintings produced spontaneously by patients with neurological lesions represent a fascinating opportunity to analyze some aspects of the underlying disease and involved brain mechanisms. Many cases of artists who have suffered spatial neglect following a neurological disease have been reported in the literature. However, only a few studies evaluating the different subtypes of graphic neglect and aspects related to the construction of perspective (three dimensionality) in works of art have been published. In the present article, we present the case of an artist who, after resection of a central neurocytoma that affected the right thalamo-parietal connections, suffered an impairment of the ability to create perspective in his paintings and involuntary omission of only shapes in the left side of his paintings, although colors and contours were preserved.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1711
[Cu] Class update date: 171226
[Lr] Last revision date:171226
[St] Status:In-Data-Review
[do] DOI:10.1080/13554794.2017.1408842

  6 / 731 MEDLINE  
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[PMID]: 29215136
[Au] Autor:Marfia G; Pirola E; Navone SE; Beretta M; Guarnaccia L; Trombetta E; Franzini A; Rampini P; Campanella R
[Ad] Address:Neurosurgery Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico , University of Milan, Milan, Italy.
[Ti] Title:Spontaneous intracerebral hemorrhage as presentation of atypical central neurocytoma: the role of angiogenesis through the characterization of tumor endothelial cells.
[So] Source:Histol Histopathol;:11953, 2017 Dec 07.
[Is] ISSN:1699-5848
[Cp] Country of publication:Spain
[La] Language:eng
[Ab] Abstract:A 36-year-old white man presented with sudden-onset headache and rapid deterioration of consciousness. Computer tomography revealed a right capsular intra-parenchimal hemorrhage with an intraventricular component; therefore, emergency surgery was performed. Once the hematoma was evacuated, the cause of the hemorrhage was identified as a tumor mass and it was resected. Histopathological and immunohistochemical examinations of the surgical specimen disclosed a diagnosis of atypical central neurocytoma. By using a protocol recently set up in our laboratory, we succeeded in isolating and propagating, for the first time, human endothelial cells from central neurocytoma (CN-ECs). Different analyses revealed that isolated CN-ECs consist of a pure endothelial cell population, with the expression of endothelial markers (CD31, CD309/VEGFR2, CD105, eNOS) and with angiogenic properties, such as the uptake of LDL. Moreover, CN-ECs spontaneously organize in a vascular-like structure. The goal of this case report is to stress the need for further studies focused on understanding the causes of the onset of an intra-parenchimal hemorrhage in the presence of an atypical central neurocytoma in order to tailor treatments to each single patient and achieve the best clinical outcome.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1712
[Cu] Class update date: 171207
[Lr] Last revision date:171207
[St] Status:Publisher
[do] DOI:10.14670/HH-11-953

  7 / 731 MEDLINE  
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[PMID]: 28979624
[Au] Autor:Abbad F; Sellami S; Hazmiri F; Idriss Ganouni NE; Benali SA; Khouchani M; Rais H
[Ad] Address:Service d'Anatomie et Cytologie Pathologiques, Hôpital Ar Razi, CHU Mohammed VI, Marrakech, Maroc.
[Ti] Title:Neurocytomes centraux: corrélations cliniques et radiopathologiques à propos de 12 observations. [Central neurocytomas: clinical and radiopathological correlations: about 12 cases].
[So] Source:Pan Afr Med J;27:222, 2017.
[Is] ISSN:1937-8688
[Cp] Country of publication:Uganda
[La] Language:fre
[Ab] Abstract:Central neurocytomas are defined as neoplasms composed of round, uniform cells, with neural immunophenotypic profile and low proliferation index. They account for 0.5% of intracranial tumors. They usually occur near the foramen of Monro and can cause obstructive hydrocephaly. We conducted a retrospective data collection from records of 12 patients with central neurocytomas in the Anatomopathological Laboratory at the Mohammed VI University Hospital, Marrakech, between January 2006 and June 2015. This study aimed to report and describe the radiopathological features of this rare histologic type. The male/female sex-ratio was 1.4. The average age at diagnosis was 22.3 years. The revealing symptomatology was dominated by intracranial hypertension associated with decreased visual acuity and diplopia in all patients. Our study concerned about simple biopsy in one case, subtotal resection in seven cases and total resection in four cases. Histopathological examination showed tumor proliferation with endocrine architecture. Tumor cells are more often small and uniform. Mitotic index was low. Tumor proliferation was associated with fibrillary fundus and vascular network with three types of trees. Immunohistochemical examination was identical in all patients. It showed tumor cells positive for anti-synaptophysin antibodies, chromogranine and NSE. In all patients the radio-pathologic correlation suggested central neurocytoma (grade II - WHO 2016). This study highlights the anatomo-clinical, radiological and evolutionary features of these rare tumors.
[Mh] MeSH terms primary: Brain Neoplasms/diagnosis
Intracranial Hypertension/etiology
Neurocytoma/diagnosis
[Mh] MeSH terms secundary: Adolescent
Adult
Antibodies, Monoclonal/immunology
Biopsy
Brain Neoplasms/diagnostic imaging
Brain Neoplasms/pathology
Diplopia/etiology
Female
Humans
Male
Morocco
Neurocytoma/diagnostic imaging
Neurocytoma/pathology
Retrospective Studies
Visual Acuity
Young Adult
[Pt] Publication type:CASE REPORTS; JOURNAL ARTICLE
[Nm] Name of substance:0 (Antibodies, Monoclonal); 0 (anti-synaptophysin)
[Em] Entry month:1710
[Cu] Class update date: 171023
[Lr] Last revision date:171023
[Js] Journal subset:IM
[Da] Date of entry for processing:171006
[St] Status:MEDLINE
[do] DOI:10.11604/pamj.2017.27.222.12016

  8 / 731 MEDLINE  
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[PMID]: 28958923
[Au] Autor:Wang M; Zhou P; Zhang S; Liu X; Lv L; Wang Z; Ye F; Wang X; Jiang S
[Ad] Address:Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
[Ti] Title:Clinical Features, Treatment, and Long-term Outcomes of Central Neurocytoma: A 20-Year Experience at a Single Center.
[So] Source:World Neurosurg;, 2017 Sep 25.
[Is] ISSN:1878-8769
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:OBJECTIVE: Central neurocytoma (CN) is a rare central nervous system tumor the optimal management strategy of which remains controversial because of their rarity. Detailed information on CN is necessary to establish optimal management strategies. The purpose of this study was to show the clinical features, treatments, and long-term clinical outcomes of CN. METHODS: A total of 63 patients with CN were surgically treated between 1995 and 2016 at West China Hospital. All pathologically proven CN cases were identified. Epidemiologic characteristics, clinical features, imaging features, functional outcomes, overall survival, and progression-free survival according to multimodal treatments were reviewed retrospectively. RESULTS: There were 29 males and 34 females, with a median age of 29 years (range, 15-58 years). Thirty-four patients underwent gross total resection (GTR) and 29 patients underwent subtotal resection (STR). The surgical approaches to CNs in this study included a transcortical approach (39 cases) and an interhemispheric transcallosal approach (24 cases). There were no differences in functional outcomes or initial extent of resection according to the surgical approach used. The extent of resection was GTR in 34 patients (54.0%), and STR in 29 patients (46.0%). At the median follow-up of 74 months (range, 6-205 months), the actuarial 5-year and 10-year overall survival were 93.3% and 85.4%. At the last follow-up, 8 patients had experienced tumor progression. The 5-year and 10-year progression-free rate was 73.4% and 57.5%. The initial extent of resection and multimodal treatment was not related to overall survival; however, the actuarial local control rate differed significantly according to the initial extent of resection and multimodal treatment. CONCLUSIONS: CN is a rare type of World Health Organization grade II primary brain tumor with a tendency to recur. Complete resection of CNs with maximal safety remains the primary treatment to minimize local progression. Adjuvant radiotherapy should be considered in patients receiving incomplete resection. The long-term clinical outcomes of CN after multimodal treatment seem to be satisfactory.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 171025
[Lr] Last revision date:171025
[St] Status:Publisher

  9 / 731 MEDLINE  
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[PMID]: 28900829
[Au] Autor:Xiao X; Zhou J; Wang J; Yang L; Wang C; Xu Y; Wu Y
[Ad] Address:Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, No. 1838 Guangzhou Avenue North, Guangzhou, 510515, China.
[Ti] Title:Clinical, radiological, pathological and prognostic aspects of intraventricular oligodendroglioma: comparison with central neurocytoma.
[So] Source:J Neurooncol;135(1):57-65, 2017 Oct.
[Is] ISSN:1573-7373
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:Studies comparing intraventricular oligodendroglioma (IVO) and central neurocytoma (CN) in terms of their clinical, radiological and pathological features are scarce. We, therefore, investigated the similarities and differences between these types of tumors to get a better understanding of how they may be more properly diagnosed and treated. The clinical manifestations, CT/MRI findings, pathological characteristics and clinical outcomes of 8 cases of IVOs and 12 cases of CNs were analyzed retrospectively. Both IVO and CN occurred most commonly in young adults and manifested with symptoms of increased intracranial pressure secondary to obstructive hydrocephalus. However, they were radiologically different in location (p = 0.007), diffusion-weighted imaging (p = 0.001), "scalloping" appearance (p = 0.006), flow void sign (p = 0.006) and ventricular wall invasion (p = 0.000). Histologically, significant differences in mitotic count (p = 0.008) and parenchymal infiltration (p = 0.01) were noted. Immunohistochemically, significant differences in the expression of Olig2 (p = 0.000), Syn (p = 0.01) and NeuN (p = 0.000) were observed. In addition, MIB-1 labeling index (p = 0.035) and case fatality rate (p = 0.021) of IVO were much higher than those of CN, while survival rate of IVO was much lower than that of CN (p = 0.028). IVO and CN are similar in onset age and clinical manifestations, but have different imaging and pathological features. Patients with IVOs may have a relatively poorer prognosis compared to those with CNs.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 171031
[Lr] Last revision date:171031
[St] Status:In-Process
[do] DOI:10.1007/s11060-017-2490-0

  10 / 731 MEDLINE  
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[PMID]: 28879895
[Au] Autor:Soni N; Dhanota DPS; Kumar S; Jaiswal AK; Srivastava AK
[Ad] Address:Department of Radiodiagnosis, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
[Ti] Title:Perfusion MR imaging of enhancing brain tumors: Comparison of arterial spin labeling technique with dynamic susceptibility contrast technique.
[So] Source:Neurol India;65(5):1046-1052, 2017 Sep-Oct.
[Is] ISSN:0028-3886
[Cp] Country of publication:India
[La] Language:eng
[Ab] Abstract:OBJECTIVE: Arterial spin labeling (ASL) magnetic resonance (MR) perfusion is a noninvasive and repeatable method for quantitatively measuring cerebral blood flow (CBF). This study aims to compare measurements of ASL-derived CBF with dynamic susceptibility contrast (DSC) MRI in the assessment of enhancing brain tumors (primary and metastatic), with an aim to use ASL as an alternative to DSC. MATERIALS AND METHODS: Thirty patients with newly diagnosed brain tumors (16 meningiomas, 6 gliomas, 3 metastases, 2 cerebellopontine angle schwannoma, 1 central neurocytoma, and 2 low-grade gliomas) were examined using a 3T MR scanner. Values of CBF, regional cerebral blood flow (rCBF), and regional cerebral blood volume (rCBV) were determined in the tumor (T) as well as in the contralateral normal gray matter (GM) and white matter (WM). Tumor-to-GM or WM CBF, rCBF, and rCBV ratios were calculated to estimate normalized perfusion values (i.e., ASL normalized tumor blood flow [nTBF], DSC nTBF, and DSC normalized tumor blood volume [nTBV]) from the ASL and DSC techniques. ASL and DSC MRI derived perfusion parameters were compared using paired t-test and correlated using Pearson correlation coefficient. RESULTS: Mean values for ASL nTBF and DSC nTBF using contralateral GM as the reference point were 2.98 ± 1.67and 2.91 ± 1.43, respectively. A very strong correlation coefficient was found between ASL nTBF and DSC nTBF with contralateral GM as the reference region (r = 0.903; R2= 0.813). Mean DSC nTBF and DSC nTBV also showed strong correlation (r = 0.83; R2= 0.701). CONCLUSION: Our study results suggested that measurement of CBF from ASL possesses the potential for a noninvasive assessment of blood flow in intracranial tumors as an alternate to DSC MRI, in those patients requiring multiple follow-up imaging and in patients with impaired renal functions.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 170907
[Lr] Last revision date:170907
[St] Status:In-Data-Review
[do] DOI:10.4103/neuroindia.NI_871_16


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