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Chordomas

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https://www.readbyqxmd.com/read/28531926/in-reply-to-ki-67-index-as-a-prognostic-marker-in-chordomas-a-systematic-review-of-the-literature
#1
Yixuan Zhai, Jiwei Bai, Shuai Wang, Mingxuan Li, Yazhuo Zhang
No abstract text is available yet for this article.
May 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28531925/ki-67-index-as-a-prognostic-marker-in-chordomas-a-systematic-review-of-the-literature
#2
Xiao-Bin Wang, Guo-Hua Lv, Jing Li, Ming-Xiang Zou
No abstract text is available yet for this article.
May 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28527124/erratum-to-symptom-burden-and-life-challenges-reported-by-adult-chordoma-patients-and-their-caregivers
#3
Paula H Song, Hadi Beyhaghi, Josh Sommer, Antonia V Bennett
No abstract text is available yet for this article.
May 19, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28524812/em-proves-invaluable-in-the-confirmation-of-chordoma-in-the-sacral-mass-of-a-middle-aged-man
#4
A Flowers, E Turbat-Herrera
A case of a 47-year-old male with a sacral spine mass was investigated by histology, immunohistochemistry (IHC), and electron microscopy (EM). The light microscopy of the first core biopsy revealed scant cellularity with spindle and round cells with eosinophilic cytoplasm within a fibromyxoid background. Immunostaining with pancytokeratin, cytokeratin 19, and S100 was nonspecific. Another biopsy was attempted to obtain a more definitive diagnosis. Light microscopy of the second core had scant cellular material...
May 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28524794/erratum-um-chor1-establishment-and-characterization-of-the-first-validated-clival-chordoma-cell-line
#5
Mark E P Prince, Xing Fan
No abstract text is available yet for this article.
May 19, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28521059/pediatric-clival-chordoma-a-curable-disease-that-conforms-to-collins-law
#6
Marcio S Rassi, M Maher Hulou, Kaith Almefty, Wenya Linda Bi, Svetlana Pravdenkova, Ian F Dunn, Timothy R Smith, Ossama Al-Mefty
BACKGROUND: Skull base chordomas in children are extremely rare. Their course, management, and outcome have not been defined. OBJECTIVE: To describe the preeminent clinical and radiological features in a series of pediatric patients with skull base chordomas and analyze the outcome of a cohort who underwent uniform treatment. We emphasize predictors of overall survival and progression-free survival, which aligns with Collins' law for embryonal tumors. METHODS: Thirty-one patients with a mean age of 10...
May 17, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28516081/a-case-of-coincidental-intrasellar-chordoma-and-pituitary-adenoma
#7
Sehoon Park, Hee Sung Kim, Ki-Su Park, Taek-Kyun Nam, Yong-Sook Park, Jeong-Taik Kwon, Kyung-Tae Kim
Although chordomas are midline tumors, primarily intrasellar chordomas are extremely rare. In this report, the authors describe the case of a 68-year-old female with partial abducens nerve palsy in the right eye due to the intrasellar cystic tumor. After endonasal trans-sphenoidal surgery, intraoperative and histopathological findings confirmed the co-occurrence of an entirely intrasellar chordoma and pituitary adenoma. To our knowledge, the present case is the third reported case of an intrasellar chordoma with a pituitary adenoma...
April 2017: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/28515451/hoxa7-hoxa9-and-hoxa10-are-differentially-expressed-in-clival-and-sacral-chordomas
#8
Daniela Jäger, Thomas F E Barth, Silke Brüderlein, Angelika Scheuerle, Beate Rinner, Adrian von Witzleben, André Lechel, Patrick Meyer, Regine Mayer-Steinacker, Alexandra von Baer, Markus Schultheiss, Christian R Wirtz, Peter Möller, Kevin Mellert
Chordomas are rare tumours of the bone arising along the spine from clivus to sacrum. We compared three chordoma cell lines of the clivus region including the newly established clivus chordoma cell line, U-CH14, with nine chordoma cell lines originating from sacral primaries by morphology, on genomic and expression levels and with patient samples from our chordoma tissue bank. Clinically, chordomas of the clivus were generally smaller in size at presentation and patients with sacral chordomas had more metastases and more often recurrent disease...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28506520/the-evolving-role-of-proton-beam-therapy-for-sarcomas
#9
S Frisch, B Timmermann
As an alternative to conventional photon-based radiotherapy, radiation with protons is recognised to offer considerable advantages. Today, central nervous system tumours, various sarcomatous tumours, childhood cancer and head and neck tumours are commonly treated with proton therapy. This review evaluates current data from clinical and dosimetric trials on the treatment of selected sarcomatous tumours like rhabdomyosarcoma, osteosarcoma, chordoma, chondrosarcoma and Ewing sarcoma. Special considerations for paediatric tumours and future prospects of proton therapy are outlined...
May 12, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28498973/chordoma-occurs-in-young-children-with-tuberous-sclerosis
#10
Nathan A Dahl, Timothy Luebbert, Michele Loi, Ilana Neuberger, Michael H Handler, Bette Kay Kleinschmidt-DeMasters, Jean M Mulcahy Levy
Chordomas are rare bony neoplasms usually unassociated with a familial tumor predisposition syndrome. The peak incidence of this midline axial skeletal tumor is in adulthood but when very young children are affected, consideration should be given to occurrence within the tuberous sclerosis (TS) complex, especially when presenting in neonates <3 months of age. To call attention to this association, we present a brachyury-immunopositive chordoma occurring in the skull base of a 2-month-old male infant who was later realized to have metastases to the subcutaneous tissues and lungs, as well as rhabdomyoma of the heart and renal cysts/angiomyolipomas, that is, characteristic features of the TS complex...
June 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28480155/update-on-the-notochord-including-its-embryology-molecular-development-and-pathology-a-primer-for-the-clinician
#11
REVIEW
Tushar Ramesh, Sai V Nagula, Gabrielle G Tardieu, Erfanul Saker, Mohammadali Shoja, Marios Loukas, Rod J Oskouian, R Shane Tubbs
The notochord is a rod-like embryological structure, which plays a vital role in the development of the vertebrate. Though embryological, remnants of this structure have been observed in the nucleus pulposus of the intervertebral discs of normal adults. Pathologically, these remnants can give rise to slow-growing and recurrent notochord-derived tumors called chordomas. Using standard search engines, the literature was reviewed regarding the anatomy, embryology, molecular development, and pathology of the human notochord...
April 4, 2017: Curēus
https://www.readbyqxmd.com/read/28464722/variables-affecting-functional-improvement-in-chordoma-patients-admitted-to-an-inpatient-rehabilitation-facility-a-retrospective-review
#12
Sasha E Knowlton, Richard Goldstein, Kevin C O'Connor, Joseph Schwab, Francis Hornicek, Ross Zafonte
STUDY DESIGN: Retrospective chart review of patients after surgical resection of chordoma admitted to an inpatient rehabilitation facility. OBJECTIVE: To evaluate the characteristics associated with improving two or more functional levels and therefore classifying as a substantial responder after an inpatient rehabilitation facility stay in post-resection chordoma patients. SETTING: Acute inpatient rehabilitation facility in the United States...
May 2, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28463614/endoscopic-endonasal-transsphenoidal-surgery-using-the-iarms-operation-support-robot-initial-experience-in-43-patients
#13
Toshihiro Ogiwara, Tetsuya Goto, Alhusain Nagm, Kazuhiro Hongo
Objective The intelligent arm-support system, iArmS, which follows the surgeon's arm and automatically fixes it at an adequate position, was developed as an operation support robot. iArmS was designed to support the surgeon's forearm to prevent hand trembling and to alleviate fatigue during surgery with a microscope. In this study, the authors report on application of this robotic device to endoscopic endonasal transsphenoidal surgery (ETSS) and evaluate their initial experiences. Methods The study population consisted of 43 patients: 29 with pituitary adenoma, 3 with meningioma, 3 with Rathke's cleft cyst, 2 with craniopharyngioma, 2 with chordoma, and 4 with other conditions...
May 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28463156/particle-therapy-using-protons-or-carbon-ions-for-unresectable-or-incompletely-resected-bone-and-soft-tissue-sarcomas-of-the-pelvis
#14
Yusuke Demizu, Dongcun Jin, Nor Shazrina Sulaiman, Fumiko Nagano, Kazuki Terashima, Sunao Tokumaru, Takashi Akagi, Osamu Fujii, Takashi Daimon, Ryohei Sasaki, Nobukazu Fuwa, Tomoaki Okimoto
PURPOSE: To retrospectively analyze the treatment outcomes of particle therapy using protons or carbon ions for unresectable or incompletely resected bone and soft tissue sarcomas (BSTSs) of the pelvis. METHODS AND MATERIALS: From May 2005 to December 2014, 91 patients with nonmetastatic histologically proven unresectable or incompletely resected pelvic BSTSs underwent particle therapy with curative intent. The particle therapy used protons (52 patients) or carbon ions (39 patients)...
June 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28457925/prognostic-factors-and-survival-outcomes-in-patients-with-chordoma-in-the-united-states-a-population-based-analysis
#15
Ivan J Lee, Robert J Lee, Daniel K Fahim
OBJECTIVE: To evaluate prognostic factors of patients with chordoma through a population-based analysis. METHODS: 1598 patients in the Surveillance, Epidemiology, and End Results (SEER) database, diagnosed with chordoma from 1973-2013 were reviewed. Kaplan-Meier univariate analysis and Cox Regression multivariate analysis were performed to examine prognostic factors in overall survival (OS) and disease-specific survival (DSS). RESULTS: Kaplan-Meier analysis showed an OS and DSS were 61% and 71% at 5 years, 41% and 57% at 10 years...
April 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28453743/targeted-next-generation-sequencing-of-pediatric-neuro-oncology-patients-improves-diagnosis-identifies-pathogenic-germline-mutations-and-directs-targeted-therapy
#16
Cassie N Kline, Nancy M Joseph, James P Grenert, Jessica van Ziffle, Eric Talevich, Courtney Onodera, Mariam Aboian, Soonmee Cha, David R Raleigh, Steve Braunstein, Joseph Torkildson, David Samuel, Michelle Bloomer, Alejandra G de Alba Campomanes, Anuradha Banerjee, Nicholas Butowski, Corey Raffel, Tarik Tihan, Andrew W Bollen, Joanna J Phillips, W Michael Korn, Iwei Yeh, Boris C Bastian, Nalin Gupta, Sabine Mueller, Arie Perry, Theodore Nicolaides, David A Solomon
Background.: Molecular profiling is revolutionizing cancer diagnostics and leading to personalized therapeutic approaches. Herein we describe our clinical experience performing targeted sequencing for 31 pediatric neuro-oncology patients. Methods.: We sequenced 510 cancer-associated genes from tumor and peripheral blood to identify germline and somatic mutations, structural variants, and copy number changes. Results.: Genomic profiling was performed on 31 patients with tumors including 11 high-grade gliomas, 8 medulloblastomas, 6 low-grade gliomas, 1 embryonal tumor with multilayered rosettes, 1 pineoblastoma, 1 uveal ganglioneuroma, 1 choroid plexus carcinoma, 1 chordoma, and 1 high-grade neuroepithelial tumor...
May 1, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28437877/in-reply-to-prognostic-significance-of-resection-degree-in%C3%A2-skull-base-chordoma-a-systematic-review-and-meta-analysis
#17
Yixuan Zhai, Jiwei Bai, Shuai Wang, Mingxuan Li, Yazhuo Zhang
No abstract text is available yet for this article.
April 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28437876/prognostic-significance-of-resection-degree-in-skull-base-chordoma-a-systematic-review-and-meta-analysis
#18
Ming-Xiang Zou, Jing Li, Xiao-Bin Wang, Guo-Hua Lv
No abstract text is available yet for this article.
April 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28437354/complete-spondylectomy-using-orthogonal-spinal-fixation-and-combined-anterior-and-posterior-approaches-for-thoracolumbar-spinal-reconstruction-technical-nuances-and-clinical-results
#19
Hasan A Zaidi, Al-Wala Awad, Curtis A Dickman
STUDY DESIGN: Retrospective chart review. OBJECTIVE: To determine the long-term efficacy of 2-stage total en bloc spondylectomy (TES). SUMMARY OF BACKGROUND DATA: TES is a well-described technique to achieve tumor-free margins, but it is a highly destabilizing procedure that necessitates spinal reconstruction. A 2-stage anterior/posterior approach for tumor resection and instrumentation has been shown to be biomechanically superior to the single-stage approach in achieving rigid fixation, but few clinical studies with long-term outcomes exist...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28432450/genetic-aberrations-and-molecular-biology-of-skull-base-chordoma-and-chondrosarcoma
#20
Yohei Kitamura, Hikaru Sasaki, Kazunari Yoshida
Chordomas and chondrosarcomas are two major malignant bone neoplasms located at the skull base. These tumors are rarely metastatic, but can be locally invasive and resistant to conventional chemotherapies and radiotherapies. Accordingly, therapeutic approaches for the treatment of these tumors can be difficult. Additionally, their location at the skull base makes them problematic. Although accurate diagnosis of these tumors is important because of their distinct prognoses, distinguishing between these tumor types is difficult due to overlapping radiological and histopathological findings...
April 2017: Brain Tumor Pathology
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