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https://www.readbyqxmd.com/read/28644075/spine-stereotactic-radiosurgery-for-metastatic-sarcoma-patterns-of-failure-and-radiation-treatment-volume-considerations
#1
Andrew J Bishop, Randa Tao, B Ashleigh Guadagnolo, Pamela K Allen, Neal C Rebueno, Xin A Wang, Behrang Amini, Claudio E Tatsui, Laurence D Rhines, Jing Li, Eric L Chang, Paul D Brown, Amol J Ghia
OBJECTIVE Given the relatively lower radiosensitivity of sarcomas and the locally infiltrative patterns of spread, the authors sought to investigate spine stereotactic radiosurgery (SSRS) outcomes for metastatic sarcomas and to analyze patterns of failure. METHODS The records of 48 patients with 66 sarcoma spinal metastases consecutively treated with SSRS between 2002 and 2013 were reviewed. The Kaplan-Meier method was used to estimate rates of overall survival (OS) and local control (LC). Local recurrences were categorized as occurring infield (within the 95% isodose line [IDL]), marginally (between the 20% and 95% IDLs), or out of field...
June 23, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28634924/chondroblastoma-in-adult-age
#2
Andrea Angelini, Mohammad Hassani, Andreas F Mavrogenis, Giulia Trovarelli, Carlo Romagnoli, Antonio Berizzi, Pietro Ruggieri
PURPOSE: Chondroblastoma (CB) is a rare benign tumor that occurs most commonly in the second decade of life. No studies on CB in adulthood have been reported. Our purposes were to report a single-institution experience on CB in adults and to discuss the clinical and imaging findings, type of treatment, oncologic and functional outcomes. PATIENTS AND METHODS: All patients diagnosed and treated for CB from 1981 to 2014 were reviewed. The main inclusion criterion was patients above their 30 years of age at diagnosis...
June 20, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28634562/a-simple-bone-cyst-in-cervical-vertebrae-of-an-adolescent-patient
#3
Adriana Bruges Boude, Lina González Vásquez, Fernando Alvarado-Gomez, María Constanza Bedoya, Andrés Rodríguez-Múnera, Luis Carlos Morales-Saenz
INTRODUCTION: Spinal simple bone cysts, also known as solitary cysts, are extremely unusual benign primary bone tumors with few cases reported in the literature. CASE PRESENTATION: Incidental Magnetic Resonance Imaging (MRI) finding of a C2 Simple bone cyst in a 13-year-old female patient is reported. Complementary studies suggested the benign nature of the lesion. Patient underwent cervical curettage followed by tumor excision. A lateral submandibular approach to the upper cervical spine was used and careful bone resection was possible with a radiofrequency assisted burr and no instrumentation or fixation was required...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28624565/a-case-of-laterally-extended-high-positioned-chordoma-treated-using-the-high-cervical-retropharyngeal-approach
#4
Kiyoshi Ito, Takuya Nakamura, Tatsuro Aoyama, Tetsuyoshi Horiuchi, Kazuhiro Hongo
BACKGROUND: Several surgical approaches for the treatment of pathologies of the craniovertebral junction (CVJ) and high cervical regions have been reported. For the best postoperative results, selection of a surgical route to treat such pathologies should be based on a complete understanding of the approach. CASE DESCRIPTION: Here, we describe the case of a 64-year-old woman who presented with a 5-year history of motor and sensory disturbances in her right upper extremity...
June 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28624375/non-hodgkin-s-lymphoma-and-atypical-neck-pain-a-case-report
#5
Natividad Rojas, Carlos Fernandes, Montse Conde, Nuria Montala, Xavier Fornos, Lluís Rosselló, Francésc Pallisó
Neck pain is a common reason for seeking medical attention. It affects at least 15% of the labor force and up to 40% of individuals whose occupation is hazardous. On the other hand, primary bone lymphoma is a very rare disease (less than 1% of all malignant bone tumors), and the relationship between the 2 has rarely been mentioned. We report the case of a patient who had a 1-month history of neck pain. The main symptom was pain on palpation of C2-C6 cervical spinous processes and contracture of the trapezius muscle that did not cease with conventional treatment...
June 14, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/28615067/correspondence-on-lovell-et-al-identification-of-chicken-genes-previously-assumed-to-be-evolutionarily-lost
#6
Susanne Bornelöv, Eyal Seroussi, Sara Yosefi, Ken Pendavis, Shane C Burgess, Manfred Grabherr, Miriam Friedman-Einat, Leif Andersson
Through RNA-Seq analyses, we identified 137 genes that are missing in chicken, including the long-sought-after nephrin and tumor necrosis factor genes. These genes tended to cluster in GC-rich regions that have poor coverage in genome sequence databases. Hence, the occurrence of syntenic groups of vertebrate genes that have not been observed in Aves does not prove the evolutionary loss of such genes.Please see related Research article: http://dx.doi.org/10.1186/s13059-014-0565-1 and Please see response from Lovell et al: https://www...
June 14, 2017: Genome Biology
https://www.readbyqxmd.com/read/28606795/endothelium-independent-primitive-myxoid-vascularization-creates-invertebrate-like-channels-to-maintain-blood-supply-in-optic-gliomas
#7
Matija Snuderl, Guoan Zhang, Pamela Wu, Tara S Jennings, Seema Shroff, Valerio Ortenzi, Rajan Jain, Benjamin Cohen, Jason J Reidy, Mitchell S Dushay, Jeffrey H Wisoff, David H Harter, Matthias A Karajannis, David Fenyo, Thomas A Neubert, David Zagzag
Optic gliomas are brain tumors characterized by slow growth, progressive loss of vision, and limited therapeutic options. Optic gliomas contain various amounts of myxoid matrix, which can represent most of the tumor mass. We sought to investigate biological function and protein structure of the myxoid matrix in optic gliomas to identify novel therapeutic targets. We reviewed histological features and clinical imaging properties, analyzed vasculature by immunohistochemistry and electron microscopy, and performed liquid chromatography-mass spectrometry on optic gliomas, which varied in the amount of myxoid matrix...
June 9, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28602679/characterization-of-the-black-carp-traf6-signaling-molecule-in-innate-immune-defense
#8
Shu Jiang, Jun Xiao, Jun Li, Hui Chen, Chanyuan Wang, Chaoliang Feng, Hao Feng
Tumor necrosis factor receptor-associated factor 6 (TRAF6) plays a vital role in the innate immune response of higher vertebrates. To elucidate its function in teleost fish, TRAF6 homologue of black carp (Mylopharyngodon piceus) has been cloned and characterized in this study. Black carp TRAF6 (bcTRAF6) transcription in Mylopharyngodon piceus fin (MPF) cells was up-regulated in response to both poly (I:C) treatment and viral infection, but was suppressed by LPS stimulation. bcTRAF6 migrated around 72 KDa in immunoblot analysis and was identified as a cytosolic protein suggested to be associated with vesicles scattering in the cytoplasm...
June 5, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28598293/stereotactic-body-radiotherapy-for-de-novo-spinal-metastases-systematic-review
#9
Zain A Husain, Arjun Sahgal, Antonio De Salles, Melissa Funaro, Janis Glover, Motohiro Hayashi, Masahiro Hiraoka, Marc Levivier, Lijun Ma, Roberto Martínez-Alvarez, J Ian Paddick, Jean Régis, Ben J Slotman, Samuel Ryu
OBJECTIVE The aim of this systematic review was to provide an objective summary of the published literature pertaining to the use of stereotactic body radiation therapy (SBRT) specific to previously untreated spinal metastases. METHODS The authors performed a systematic review, using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, of the literature found in a search of Medline, PubMed, Embase, and the Cochrane Library up to March 2015. The search strategy was limited to publications in the English language...
June 9, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28598292/effects-of-primary-and-recurrent-sacral-chordoma-on-the-motor-and-nociceptive-function-of-hindlimbs-in-rats-an-orthotopic-spine-model
#10
Rachel Sarabia-Estrada, Alejandro Ruiz-Valls, Sagar R Shah, A Karim Ahmed, Alvaro A Ordonez, Fausto J Rodriguez, Hugo Guerrero-Cazares, Ismael Jimenez-Estrada, Esteban Velarde, Betty Tyler, Yuxin Li, Neil A Phillips, C Rory Goodwin, Rory J Petteys, Sanjay K Jain, Gary L Gallia, Ziya L Gokaslan, Alfredo Quinones-Hinojosa, Daniel M Sciubba
OBJECTIVE Chordoma is a slow-growing, locally aggressive cancer that is minimally responsive to conventional chemotherapy and radiotherapy and has high local recurrence rates after resection. Currently, there are no rodent models of spinal chordoma. In the present study, the authors sought to develop and characterize an orthotopic model of human chordoma in an immunocompromised rat. METHODS Thirty-four immunocompromised rats were randomly allocated to 4 study groups; 22 of the 34 rats were engrafted in the lumbar spine with human chordoma...
June 9, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28596487/znf131-suppresses-centrosome-fragmentation-in-glioblastoma-stem-like-cells-through-regulation-of-haus5
#11
Yu Ding, Jacob A Herman, Chad M Toledo, Jackie M Lang, Philip Corrin, Emily J Girard, Ryan Basom, Jeffrey J Delrow, James M Olson, Patrick J Paddison
Zinc finger domain genes comprise ~3% of the human genome, yet many of their functions remain unknown. Here we investigated roles for the vertebrate-specific BTB domain zinc finger gene ZNF131 in the context of human brain tumors. We report that ZNF131 is broadly required for Glioblastoma stem-like cell (GSC) viability, but dispensable for neural progenitor cell (NPC) viability. Examination of gene expression changes after ZNF131 knockdown (kd) revealed that ZNF131 activity notably promotes expression of Joubert Syndrome ciliopathy genes, including KIF7, NPHP1, and TMEM237, as well as HAUS5, a component of Augmin/HAUS complex that facilitates microtubule nucleation along the mitotic spindle...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28593502/prognostic-factors-in-surgical-patients-with-chordomas-of-the-cervical-spine-a-study-of-52-cases-from-a-single-institution
#12
Hua Zhou, Liang Jiang, Feng Wei, Alexander Joeris, Anahí Hurtado-Chong, Vasiliki Kalampoki, Elke Rometsch, Miao Yu, Fengliang Wu, Lei Dang, Xiaoguang Liu, Zhongjun Liu
BACKGROUND: The recurrence rate of cervical chordomas is high, and hence it is important to discern the prognostic factors for local relapse and overall survival (OS). METHODS: A retrospective review of 52 patients with cervical chordoma operated in our institution from January 1999 to March 2015 was performed. The association of clinicopathologic characteristics with local relapse-free survival (LRFS) and OS was analyzed. Univariate analysis was performed to determine whether tumor characteristics and types of therapy affected prognosis, and a multivariate Cox proportional hazard model was developed to further investigate local recurrence and mortality...
June 7, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28592077/-clinical-effects-of-microsurgery-in-spinal-cord-anaplastic-astrocytoma
#13
L Zhang, W Q Jia, D S Kong, Z F Zhang, J Yang
Objective: To investigate the surgical outcomes and prognosis of spinal cord anaplastic astrocytoma (AA). Methods: A total of 27 consecutive patients diagnosed as spinal cord AA between January 2008 and May 2015 in Department of Neurosurgery of Beijing Tiantan Hospital were retrospectively reviewed. There were 18 males and 9 females, the mean age was (30.7±13.0) years (ranging from 5 to 52 years). The lesions were located at cervical level in 8 patients, at thoracic level in 9 patients, at cervicothoracic level in 3 patients, and at thoracolumbar level in 7 patients, the average number of vertebral was 3...
June 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28587057/safety-and-efficacy-of-stereotactic-ablative-radiation-therapy-for-renal-cell-carcinoma-extracranial-metastases
#14
Chiachien Jake Wang, Alana Christie, Mu-Han Lin, Matthew Jung, Derek Weix, Lorel Huelsmann, Kristin Kuhn, Jeffrey Meyer, Neil Desai, D W Nathan Kim, Ivan Pedrosa, Vitaly Margulis, Jeffrey Cadeddu, Arthur Sagalowsky, Jeffrey Gahan, Aaron Laine, Xian-Jin Xie, Hak Choy, James Brugarolas, Robert Timmerman, Raquibul Hannan
PURPOSE: Renal cell carcinoma is refractory to conventional radiation therapy but responds to higher doses per fraction. However, the dosimetric data and clinical factors affecting local control (LC) are largely unknown. We aimed to evaluate the safety and efficacy of stereotactic ablative radiation therapy (SAbR) for extracranial renal cell carcinoma metastases. METHODS AND MATERIALS: We reviewed 175 metastatic lesions from 84 patients treated with SAbR between 2005 and 2015...
May 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28587051/evaluating-intensity-modulated-proton-therapy-relative-to-passive-scattering-proton-therapy-for-increased-vertebral-column-sparing-in-craniospinal-irradiation-in-growing-pediatric-patients
#15
Drosoula Giantsoudi, Joao Seco, Bree R Eaton, F Joseph Simeone, Hanne Kooy, Torunn I Yock, Nancy J Tarbell, Thomas F DeLaney, Judith Adams, Harald Paganetti, Shannon M MacDonald
PURPOSE: At present, proton craniospinal irradiation (CSI) for growing children is delivered to the whole vertebral body (WVB) to avoid asymmetric growth. We aimed to demonstrate the feasibility and potential clinical benefit of delivering vertebral body sparing (VBS) versus WVB CSI with passively scattered (PS) and intensity modulated proton therapy (IMPT) in growing children treated for medulloblastoma. METHODS AND MATERIALS: Five plans were generated for medulloblastoma patients, who had been previously treated with CSI PS proton radiation therapy: (1) single posteroanterior (PA) PS field covering the WVB (PS-PA-WVB); (2) single PA PS field that included only the thecal sac in the target volume (PS-PA-VBS); (3) single PA IMPT field covering the WVB (IMPT-PA-WVB); (4) single PA IMPT field, target volume including thecal sac only (IMPT-PA-VBS); and (5) 2 posterior-oblique (-35°, +35°) IMPT fields, with the target volume including the thecal sac only (IMPT2F-VBS)...
May 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28562620/reprimo-tissue-specific-expression-pattern-is-conserved-between-zebrafish-and-human
#16
Ricardo J Figueroa, Gonzalo Carrasco-Avino, Ignacio A Wichmann, Martin Lange, Gareth I Owen, Arndt F Siekmann, Alejandro H Corvalán, Juan C Opazo, Julio D Amigo
Reprimo (RPRM), a member of the RPRM gene family, is a tumor-suppressor gene involved in the regulation of the p53-mediated cell cycle arrest at G2/M. RPRM has been associated with malignant tumor progression and proposed as a potential biomarker for early cancer detection. However, the expression and role of RPRM, as well as its family, are poorly understood and their physiology is as yet unstudied. In this scenario, a model system like the zebrafish could serve to dissect the role of the RPRM family members in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28559758/plasmacytoma-of-the-cervical-spine-a-case-study
#17
Richard Pashayan, Wesley M Cavanaugh, Chad D Warshel, David R Payne
OBJECTIVE: The purpose of this case study is to describe the presentation of a patient with plasmacytoma. CLINICAL FEATURES: A 49-year-old man presented with progressive neck pain, stiffness, and dysphagia to a chiropractic office. A radiograph indicated a plasmacytoma at C3 vertebral body. The lesion was expansile and caused a mass effect anteriorly on the esophagus and posteriorly on the spinal cord. Neurologic compromise was noted with fasciculations and hypesthesia in the right forearm...
June 2017: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/28553393/osteoblastoma-mimicking-an-idiopathic-intracranial-hypertension-syndrome
#18
Alessandro Boaro, Elisabetta Marton, Grazia Marina Mazzucco, Pierluigi Longatti
Osteoblastomas are rare, benign bone tumors mainly arising from the long bones and the posterior vertebral arches. Skull localizations account for approximately 15% of cases. A total amount of thirty cases involving the temporal bone are reported in the literature. Clinical presentation of temporal osteoblastomas often includes local pain and swelling, while 7(th) and 8(th) cranial nerve impairment is rare. We report the novel finding of increase intracranial pressure syndrome secondary to dominant transverse-sigmoid sinus junction compression caused by a small temporal bone osteoblastoma...
January 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28551643/clinical-outcomes-and-prognostic-factors-of-adenoid-cystic-carcinoma-of-the-head-and-neck
#19
Samuel Jang, Priyesh N Patel, Randall J Kimple, Timothy M McCulloch
BACKGROUND: Adenoid cystic carcinoma (ACC) is a salivary gland malignancy with unpredictable growth and poorly understood prognostic factors. PATIENTS AND METHODS: A database search of patients treated at a single Institution was used to identify patients with histologically-confirmed ACC. Patient, tumor, and treatment characteristics were examined via review of medical records. RESULTS: Overall survival of 70 patients identified at 5, 10, and 15 years was 80...
June 2017: Anticancer Research
https://www.readbyqxmd.com/read/28512617/vertebral-artery-injury-in-c2-3-epidural-schwannoma-resection-a-case-report-and-literature-review
#20
Su Bum Lee, Chae Hong Rhim, Sung Woo Roh, Sang Ryong Jeon, Seung Chul Rhim
The incidence of vertebral artery (VA) injury (VAI) in posterior approach tumor resection surgery is extremely rare, but it can lead to serious complication. In this case, a 57-year-old man underwent surgery for resection of the tumor involving left epidural space and neural foramen at C2-3 level. Iatrogenic VAI occurred suddenly during tumor resection procedure using pituitary forceps. Immediate local hemostasis and maintaining of perfusion for reducing the risk of posterior circulation ischemia were performed...
April 2017: Korean Journal of Neurotrauma
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