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https://www.readbyqxmd.com/read/28740449/genetic-factors-affecting-intraoperative-5-aminolevulinic-acid-induced-fluorescence-of-diffuse-gliomas
#1
Kiyotaka Saito, Toshinori Hirai, Hideo Takeshima, Yoshihito Kadota, Shinji Yamashita, Asya Ivanova, Kiyotaka Yokogami
BACKGROUND: In patients operated for malignant glioma, 5-aminolevulinic acid (5-ALA)-induced fluorescence guidance is useful. However, we occasionally experience instances of non-visible fluorescence despite a histopathological diagnosis of high-grade glioma. We sought to identify factors that influence the intraoperative visualization of gliomas by their 5-ALA-induced fluorescence. PATIENTS AND METHODS: We reviewed data from 60 patients with astrocytic or oligodendroglial tumors who underwent tumor removal under 5-ALA-induced fluorescence guidance between January 2014 and December 2015...
June 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/28740401/the-diagnostic-and-prognostic-values-of-ki-67-mib-1-expression-in-thyroid-cancer-a-meta-analysis-with-6-051-cases
#2
REVIEW
Deng-Hua Pan, Dong-Yue Wen, Yi-Huan Luo, Gang Chen, Hong Yang, Jun-Qiang Chen, Yun He
BACKGROUND: Growing evidence has demonstrated that Ki-67/MIB-1 has an effect on the clinical progression and prognosis in cancers. However, the diagnostic and prognostic values of Ki-67/MIB-1 in thyroid cancer remain unclear. MATERIALS AND METHODS: The meta-analysis was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Studies were retrieved from PubMed, EBSCO, EMBASE, ISI Web of Science, China National Knowledge Infrastructure, WanFang and Chinese VIP databases...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28735124/inherent-tumor-characteristics-that-limit-effective-and-safe-resection-of-giant-nonfunctioning-pituitary-adenomas
#3
Hiroshi Nishioka, Takayuki Hara, Yuichi Nagata, Noriaki Fukuhara, Mitsuo Yamaguchi-Okada, Shozo Yamada
BACKGROUND: Surgical treatment of giant pituitary adenomas is sometimes challenging. We present our surgical series of giant nonfunctioning adenomas to shed light on the limitations of effective and safe tumor resection. METHODS: The preoperative tumor characteristics, surgical approaches, outcome, and histology of giant nonfunctioning adenoma (>40 mm) in 128 consecutive surgical patients are reviewed. The follow-up period ranged from 19 to 113 (mean 62.2) months...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28696174/bilateral-lateral-ventricular-subependymoma-with-extensive-multiplicity-presenting-with-hemorrhage
#4
F M Moinuddin, Novita Ikbar Khairunnisa, Hirofumi Hirano, Tomoko Hanada, Tsubasa Hiraki, Mari Kirishima, Kiyohisa Kamimura, Kazunori Arita
This 48-year-old-man who had undergone right thyroid lobectomy for undifferentiated thyroid carcinoma nine years earlier developed generalized seizures. His cerebrospinal fluid was xanthochromic with elevation of total protein. Computed tomography (CT) showed mixed-density bilateral ventricular masses. Magnetic resonance imaging (MRI) revealed multiple nodules in both lateral ventricles; they were heterogeneously enhanced by gadolinium. Diffuse hyperintensity in the right medial temporal lobe and bilateral subependymal area was noted on fluid-attenuated inversion recovery images...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28689230/the-extended-transnasal-transsphenoidal-approach-for-anterior-skull-base-meningioma-considerations-in-patient-selection
#5
Joseph P Castlen, David J Cote, Hasan A Zaidi, Edward R Laws
PURPOSE: In this study, we set out to define our institutional criteria for patient eligibility for transsphenoidal resection of parasellar meningiomas, and to report our experience with extended transnasal approaches for these lesions. We aimed to discuss the important considerations of patient selection and risk stratification to optimize outcomes for patients with these difficult lesions, and also include considerations that should be reviewed during surgical approach selection. METHODS: Medical records from Brigham and Women's Hospital were retrospectively reviewed for all patients who underwent transsphenoidal surgery for pituitary disease with the senior author from April 2008 to March 2017 (938 procedures)...
July 8, 2017: Pituitary
https://www.readbyqxmd.com/read/28686110/role-of-endoscopic-transnasal-surgery-for-skull-base-chondrosarcoma-a-retrospective-analysis-of-19-cases-at-a-single-institution
#6
Hirotaka Hasegawa, Masahiro Shin, Kenji Kondo, Shunya Hanakita, Akitake Mukasa, Taichi Kin, Nobuhito Saito
OBJECTIVE Skull base chondrosarcoma is one of the most intractable tumors because of its aggressive biological behavior and involvement of the internal carotid artery and cranial nerves (CNs). One of the most accepted treatment strategies for skull base chondrosarcoma has been surgical removal of the tumor in conjunction with proactive extensive radiation therapy (RT) to the original tumor bed. However, the optimal strategy has not been determined. The goal of this study was to evaluate the early results of endoscopic transnasal surgery (ETS)...
July 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28651933/nuclear-%C3%AE-catenin-positivity-as-a-predictive-marker-of-long-term-survival-in-advanced-epithelial-ovarian-cancer
#7
Bence Nagy, László Tóth, Péter Molnár, Gábor Méhes, László Thurzó, Róbert Póka, Zoltán Hernádi
BACKGROUND: Classical features as histomorphology, grade, FIGO stage, and residual tumour mass have strong prognostic value in advanced epithelial ovarian carcinomas (AEOC). Most AEOCs are associated with early recurrence and poor overall survival (OS). Despite of early recurrence, general poor outcome, both high grade tumours or tumours with advanced FIGO stage at the time of diagnosis, in some of such cases, long-term survival (LTS) has been recorded . The aim of this study was to compare the utility of "classical" prognostic factors to molecular factors such as β-catenin- E-cadherin-, mutated TP53-, and MiB-1 (Ki-67) labelling index determination in predicting long-term survival...
August 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28598278/atypical-pituitary-adenoma-a-clinicopathologic-case-series
#8
Martin J Rutkowski, Ryan M Alward, Rebecca Chen, Jeffrey Wagner, Arman Jahangiri, Derek G Southwell, Sandeep Kunwar, Lewis Blevins, Han Lee, Manish K Aghi
OBJECTIVE In 2004, the WHO classified atypical pituitary adenoma as a distinct adenoma subtype. However, the clinical significance of this distinction remains undetermined. The authors sought to define patient characteristics, tumor features, and treatment outcomes associated with atypical pituitary adenoma. METHODS The authors reviewed records of patients who underwent resection of pituitary adenoma at the University of California, San Francisco, between 2007 and 2014. Per institutional protocol, adenomas exhibiting mitotic activity underwent evaluation for all 3 markers of atypicality (mitotic index, extensive p53 staining, and MIB-1 index ≥ 3%)...
June 9, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28592757/hiv-negative-plasmablastic-lymphoma-attaining-sustained-remission-with-bortezomib-combined-dose-adjusted-epoch-therapy
#9
Hiroyuki Kobayashi, Norito Miyagi
A 61-year-old, HIV-negative, immunocompetent woman was admitted to our hospital for significant weight loss, painful swelling of her right cheek, and rapid growth of a tumor in the right hard palate. A CT scan revealed a neoplastic lesion in the right maxillary sinus, extending to the surrounding soft bone tissue and oral cavity, as well as multiple osteolytic lesions in the skull. A pathologic examination revealed that the neoplastic cells in the oral cavity were plasmablasts tending to appear as differentiated plasma cells...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28573325/implications-of-the-world-health-organization-definition-of-atypia-on-surgically-treated-functional-and-non-functional-pituitary-adenomas
#10
Sauradeep Sarkar, Vinu Joe Philip, Sai Kiran Cherukuri, Ari George Chacko, Geeta Chacko
BACKGROUND: The World Health Organization (WHO) defines atypical pituitary adenomas as tumours with a MIB-1 labelling index ≥3%, p53 positivity and increased mitotic activity. Although a few reports have described the clinical and radiological correlates of atypia in pituitary adenomas, its impact on postoperative outcomes is not clearly defined. METHOD: We reviewed preoperative and postoperative records of patients undergoing surgery for pituitary adenomas. Postoperative outcomes for functional adenomas (FPAs) were assessed according to contemporary definitions of remission and recurrence...
June 1, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28567708/clinical-value-of-fluorine-18%C3%AE-methyltyrosine-pet-in-patients-with-gliomas-comparison-with-fluorine-18-fluorodeoxyglucose-pet
#11
Keishi Horiguchi, Masahiko Tosaka, Tetsuya Higuchi, Yukiko Arisaka, Kenichi Sugawara, Junko Hirato, Hideaki Yokoo, Yoshito Tsushima, Yuhei Yoshimoto
BACKGROUND: We investigated the relationship between metabolic activity and histological features of gliomas using fluorine-18α-methyltyrosine ((18)F-FAMT) positron emission tomography (PET) compared with fluorine-18 fluorodeoxyglucose ((18)F-FDG) PET in 38 consecutive glioma patients. The tumor to normal brain ratios (T/N ratios) were calculated, and the relationships between T/N ratio and World Health Organization tumor grade or MIB-1 labeling index were evaluated. The diagnostic values of T/N ratios were assessed using receiver operating characteristic (ROC) curve analyses to differentiate between high-grade gliomas (HGGs) and low-grade gliomas (LGGs)...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28548702/p16-loss-and-e2f-cell-cycle-deregulation-in-infant-posterior-fossa-ependymoma
#12
Seth C Lummus, Andrew M Donson, Katherine Gowan, Kenneth L Jones, Rajeev Vibhakar, Nicholas K Foreman, B K Kleinschmidt-DeMasters
BACKGROUND: Posterior fossa (PF) ependymomas (EPNs) in infants less than 1 year of age (iEPN-PF) have a poorer clinical outcome than EPNs in older children. While radiation therapy is the standard of care for the latter, it is withheld in infants to avoid neurotoxicity to immature brain. It is unknown whether the adverse outcome in iEPN-PFs is due to treatment differences or aggressive biology. We examined this question using molecular profiling. METHODS: Six anaplastic iEPN-PFs were subjected to transcriptomic analysis and FISH for p16 loss and gains of 1q, and compared with anaplastic PF EPNs from older children...
May 26, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28512040/meningiomas-adjacent-to-major-venous-sinuses-clinical-outcome-and-recurrence
#13
Judith Anthofer, Rahel Seidel-Schulz, Martin Proescholdt, Alexander Brawanski, Karl-Michael Schebesch
BACKGROUND: Surgical treatment of meningiomas next to venous sinuses is difficult because of their irregular growth patterns and infiltration into the venous sinuses, making gross total resection impossible in some patients. We evaluated the postoperative clinical and neurologic course of this tumor subgroup. METHODS: This study included 141 consecutive patients with meningioma located within 20 mm of a major venous sinus. Complete data sets were available for all patients...
August 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28469969/vessel-morphometric-parameters-correlation-with-histologic-grade-and-vegf-expression-in-oligodendroglioma
#14
Leah B Strickland-Marmol, Steven Brem, Amyn M Rojiani, Mumtaz V Rojiani
The contributions of histologic features including microvascular proliferation to the determination of malignancy in oligodendrogliomas remain uncertain. We have retrospectively performed morphometric assessments in 20 tumors histologically classified as well-differentiated (WHO Grade II, n=8) or anaplastic (WHO Grade III, n=12) oligodendrogliomas (WDO or AO). Quantitative studies utilized image analysis of double immunolabeled vasculature with anti CD34 with VIP chromogen (purple) and proliferating nuclei with anti MIB-1, using DAB (brown)...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28430038/prognostic-implications-of-the-subcellular-localization-of-survivin-in-glioblastomas-treated-with-radiotherapy-plus-concomitant-and-adjuvant-temozolomide
#15
Taiichi Saito, Kazuhiko Sugiyama, Yukio Takeshima, Vishwa Jeet Amatya, Fumiyuki Yamasaki, Takeshi Takayasu, Ryo Nosaka, Yoshihiro Muragaki, Takakazu Kawamata, Kaoru Kurisu
OBJECTIVE Currently, the standard treatment protocol for patients with newly diagnosed glioblastoma (GBM) includes surgery, radiotherapy, and concomitant and adjuvant temozolomide (TMZ). Various prognostic biomarkers for GBM have been described, including survivin expression. The aim of this study was to determine whether the subcellular localization of survivin correlates with GBM prognosis in patients who received the standard treatment protocol. METHODS The authors retrospectively examined the subcellular localization of survivin (nuclear, cytoplasmic, or both) using immunohistochemistry in 50 patients with GBM who had received the standard treatment...
April 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28423698/parameters-of-simultaneous-18f-fdg-pet-mri-predict-tumor-stage-and-several-histopathological-features-in-uterine-cervical-cancer
#16
Alexey Surov, Hans Jonas Meyer, Stefan Schob, Anne-Kathrin Höhn, Kristina Bremicker, Marc Exner, Patrick Stumpp, Sandra Purz
The purpose of this study was to analyze associations between apparent diffusion coefficient (ADC) and standardized uptake values (SUV) values and different histopathological parameters in uterine cervical cancer. 21 patients with primary uterine cervical cancer were involved into the study. All patients underwent a whole body simultaneous18F-FDG PET/MRI. Mean and maximum SUV were noted (SUVmean and SUVmax). In all tumors minimal, mean, and maximal ADC values (ADCmin, ADCmean, and ADCmax) were estimated. Combined parameters were calculated: SUVmax/SUVmean, ADCmin/ ADCmean, SUVmax/ADCmin and SUVmax/ADCmean...
April 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28410600/primary-adrenal-non-hodgkin-lymphoma-a-case-report-and-review-of-the-literature
#17
Nanik Ram, Owais Rashid, Saad Farooq, Imran Ulhaq, Najmul Islam
BACKGROUND: Lymphomas are cancers that arise from the white blood cells and have been traditionally divided into two large subtypes: Hodgkin and non-Hodgkin lymphoma. B-cell lymphoma is the most common subtype of non-Hodgkin lymphoma; almost 85% of patients with lymphoma have this variant. Lymphomas can potentially arise from any lymphoid tissue located in the body; however, primary adrenal non-Hodgkin lymphoma is extremely rare. We report the history, examination findings, and laboratory results of a 50-year-old man diagnosed with a primary left adrenal diffuse large B-cell lymphoma...
April 15, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28387066/calcifying-pseudoneoplasm-of-the-neuraxis-in-direct-continuity-with-a-low-grade-glioma-a-case-report-and-review-of-the-literature
#18
Nayuta Higa, Hideaki Yokoo, Hirofumi Hirano, Hajime Yonezawa, Tatsuki Oyoshi, Yuko Goto, Kazunori Arita
Calcifying pseudoneoplasms of the neuraxis (CAPNON) are presumed to be a non-neoplastic reactive pathology, based on the frequent finding of granulomatous inflammation. To our knowledge, there are few reports of CAPNON in association with a neoplasm. Here, we report the case of a 62-year-old man presenting with headache, which was caused by CAPNON in the left cingulate gyrus. CT scan revealed a calcified mass exhibiting gradual growth and increasing peritumoral edema. MRI showed an intra-axial hypointense mass on T1- and T2-weighted images...
April 7, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28384868/diagnostic-and-prognostic-significance-of-ki-67-immunohistochemical-expression-in-surface-epithelial-ovarian-carcinoma
#19
Asha Mahadevappa, Shruthi Mysore Krishna, Manjunath Gubbanna Vimala
INTRODUCTION: The Surface Epithelial Ovarian Carcinoma (SEOC) at the moment of diagnosis, the disease is extended beyond the structures of the pelvis. Ki-67 is one of the prognostic marker which determines the growth fraction of a tumour and its over expression is associated with malignancy, tumour aggression, reserved prognosis and metastasis. AIM: To evaluate the proliferative activity using Ki-67 immuno-staining in SEOC and to correlate with histological subtype, grade, Federation of Gynecology and Obstetrics (FIGO) stage, CA125 levels for diagnostic and prognostic purpose...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28379477/strong-fgfr3-staining-is-a-marker-for-fgfr3-fusions-in-diffuse-gliomas
#20
Kirsi J Granberg, Matti Annala, Birgitta Lehtinen, Juha Kesseli, Joonas Haapasalo, Pekka Ruusuvuori, Olli Yli-Harja, Tapio Visakorpi, Hannu Haapasalo, Matti Nykter, Wei Zhang
Background: Inhibitors of fibroblast growth factor receptors (FGFRs) have recently arisen as a promising treatment option for patients with FGFR alterations. Gene fusions involving FGFR3 and transforming acidic coiled-coil protein 3 (TACC3) have been detected in diffuse gliomas and other malignancies, and fusion-positive cases have responded well to FGFR inhibition. As high FGFR3 expression has been detected in fusion-positive tumors, we sought to determine the clinical significance of FGFR3 protein expression level as well as its potential for indicating FGFR3 fusions...
September 1, 2017: Neuro-oncology
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