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Chordomas

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https://www.readbyqxmd.com/read/28709789/extra-axial-chordoma-of-the-hand
#1
Alexander Bitzer, Edward F McCarthy, Carol D Morris
Chordomas are low-grade malignant tumors that are locally aggressive and have the potential to metastasize. They most often occur in the sacrococcygeal and spheno-occipital portions of the vertebral column. Morphologically similar tumors have been found outside the axial skeleton and are referred to as extra-axial chordomas. Several case reports have described the radiologic, microscopic, and immunologic profiles of these tumors and their similarities to axial chordomas. The authors report a 24-year-old man who presented with a mass in his left hand and underwent surgical excision...
July 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28708652/clinical-application-of-multimodal-neuronavigation-system-in-neuroendoscope-assisted-skull-base-chordoma-resection
#2
Xin Wang, Long Li, Yibao Wang, Jinqu Hu, Jinpeng Zhou, Zhitao Jing, Anhua Wu
Skull base chordoma is a rare tumor arising from embryonic remnants of the notochord with invasive potential. Due to the destruction of osseous landmarks and invasion of surrounding structures, surgical resection is challenging. The authors explored the clinical value of a multimodal neuronavigation system in skull base chordoma resection using a neuroendoscope. Between January 2012 and January 2016, the authors utilized neuroendoscopy to excise skull base chordoma in 93 patients. The authors performed 45 operations assisted by multimodal neuronavigation (neuronavigation group) and 48 without intraoperative imaging guidance (control group)...
July 13, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28702752/proximal-tibial-extra-axial-chordoma-masquerading-as-renal-cell-carcinoma-metastasis
#3
Jennifer Huang, Nicholas Bhojwani, Fredrick D Oakley, Martin I Jordanov
Chordomas are rare, locally aggressive notochordal tumors, which most frequently occur in the neuraxis. We describe the case of a 74-year-old male with a history of renal cell carcinoma, who presented with a slowly enlarging mass in his left leg. While the clinical history and imaging suggested metastatic renal cell carcinoma, immunohistochemical staining with brachyury ultimately made the diagnosis of extra-axial chordoma. At 74 years of age, our patient is the oldest ever reported with bony extra-axial chordoma objectively confirmed by brachyury staining...
July 12, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28699066/effect-comparisons-among-treatment-measures-on-progression-free-survival-in-patients-with-skull-base-chordomas-a-retrospective-study-of-234-post-surgical-cases
#4
Liang Wang, Kaibing Tian, Junpeng Ma, Ke Wang, Guijun Jia, Zhen Wu, Liwei Zhang, Junting Zhang
BACKGROUND: Skull base chordoma (SBC) is a rare and refractory tumor with a high rate of relapse. We aimed to investigate the relationships between different treatment measures and progression-free survival (PFS) outcomes. METHODS: Data from 234 SBC patients from one institution were retrieved from a prospectively maintained database. After grouping, the clinicopathological features and mean estimated PFS times were subject to inter-group and intra-group comparisons, and prognostic factors of PFS were estimated by statistical analyses...
July 11, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28698083/a-hemorrhagic-clival-chordoma-with-a-long-progression-free-survival-case-report
#5
Marcelo D Vilela, Hugo As Pedrosa, Marco Antonio Dias Filho
BACKGROUND: Chordomas and ecchordosis physaliphora may on rare occasions present with intracranial hemorrhage. Their distinction usually relies on the results of the Ki67 proliferative index, with a result lower than 1% favoring ecchordosis physaliphora. Intracranial hemorrhagic chordomas have been linked to unfavorable prognosis, due to acute neurological deterioration and death, or progression following treatment. To the best of our knowledge, this is the first report of an intracranial hemorrhagic chordoma who had a long progression free survival...
July 8, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28691010/management-of-chordoma-and-chondrosarcoma-with-fractionated-stereotactic-radiotherapy
#6
Harish N Vasudevan, David R Raleigh, Julian Johnson, Adam A Garsa, Philip V Theodosopoulos, Manish K Aghi, Christopher Ames, Michael W McDermott, Igor J Barani, Steve E Braunstein
OBJECTIVE: To evaluate the efficacy and toxicity of fractionated stereotactic radiotherapy (FSRT) for chordoma and chondrosarcoma. METHODS: Twenty consecutive patients with a histopathologic diagnosis of chordoma (n = 16) or chondrosarcoma (n = 4) treated between 2010 and 2016 were retrospectively identified. All patients underwent FSRT in five fractions to a median dose of 37.5 Gy (range: 25-40 Gy) and followed with serial magnetic resonance imaging...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/28672710/in-reply-to-the-letter-to-the-editor-regarding-expression-of-cathepsin-k-in-skull-base-chordoma
#7
Kaibing Tian, Liang Wang, Junting Zhang
No abstract text is available yet for this article.
July 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28672709/in-reply-to-the-letter-to-the-editor-regarding-expression-of-cathepsin-k-in-skull-base-chordoma
#8
Ke Wang, Junting Zhang
No abstract text is available yet for this article.
July 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28672708/letter-to-the-editor-regarding-expression-of-cathepsin-k-in-skull-base-chordoma
#9
Zhi-Hui Dai, Ding-Jun Hao, Ming Yang
No abstract text is available yet for this article.
July 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28663407/quality-of-life-after-resection-of-a-chordoma-of-the-mobile-spine
#10
J H Schwab, S J Janssen, N R Paulino Pereira, Y L E Chen, J C Wain, T F DeLaney, F J Hornicek
AIMS: The aim of the study was to compare measures of the quality of life (QOL) after resection of a chordoma of the mobile spine with the national averages in the United States and to assess which factors influenced the QOL, symptoms of anxiety and depression, and coping with pain post-operatively in these patients. PATIENTS AND METHODS: A total of 48 consecutive patients who underwent resection of a primary or recurrent chordoma of the mobile spine between 2000 and 2015 were included...
July 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28647652/kinase-activity-in-recurring-primary-skull-base-chordomas-and-chondrosarcomas-identification-of-novel-pathways-of-oncogenesis-and-potential-drug-targets
#11
Philip Tatman, Joshua Osbun, Youssef Yakkioui, Sumanpret Kaur, Carolina Parada, Tina Busald, Donald Born, Owais Ahmad, Jing Zhang, Manuel Ferreira
OBJECTIVE: Chordomas and chondrosarcomas are tumors that can occur in the skull base. Currently, 45% of chordomas and 56% of chondrosarcomas recur within five years of surgery. The role of adjuvant therapy is highly debated. No pharmacotherapies have been approved by the FDA for chordomas or chondrosarcomas. The high propensity for recurrence and lack of definitive adjuvant therapy necessitates additional basic science research to identify molecular anomalies associated with recurrent disease...
June 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28624565/a-case-of-laterally-extended-high-positioned-chordoma-treated-using-the-high-cervical-retropharyngeal-approach
#12
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/28623412/long-term-follow-up-after-endoscopic-trans-sphenoidal-surgery-or-initial-observation-in-clivus-chordomas
#13
Jon Ramm-Pettersen, Radek Frič, Jon Berg-Johnsen
BACKGROUND: Resection of clivus chordomas through extensive skull base approaches is associated with high mortality and morbidity even in experienced hands. We report our experience with endoscopic trans-sphenoidal surgery, or a "wait-and-scan" strategy in selected patients. METHOD: Ten patients were diagnosed with clivus chordomas during an 8-year period. Six patients underwent primary treatment with endoscopic trans-sphenoidal surgery, followed by adjuvant proton-beam therapy in three of these patients...
June 16, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28606919/expression-and-therapeutic-potential-of-sox9-in-chordoma
#14
Hua Chen, Cassandra Garbutt, Dimitrios Spentzos, Edwin Choy, Francis J Hornicek, Zhenfeng Duan
Conventional chemotherapeutic agents are ineffective in the treatment of chordoma. We investigated the functional roles and therapeutic relevance of the sex-determining region Y (SRY)-box 9 (SOX9) in chordoma. <br /><br />Experimental Design: <p>SOX9 expression was examined by immunohistochemistry (IHC) using 50 chordoma tissue samples. SOX9 expression in chordoma cell lines was examined by Western blot and immunofluorescence assays. We used synthetic human SOX9 siRNA to inhibit the expression of SOX9...
June 12, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28606578/a-case-of-ecchordosis-physaliphora-in-the-prepontine-cistern-a-rare-entity-in-the-differential-diagnosis-of-an-epidermoid-cyst
#15
Kenji Miki, Koji Yoshimoto, Ataru Nishimura, Satoshi O Suzuki, Akio Hiwatashi, Koji Iihara
BACKGROUND: Ecchordosis physaliphora (EP) is a benign notochordal remnant, which is usually asymptomatic. Herein, we report a case of symptomatic large EP mimicking an epidermoid cyst. CASE DESCRIPTION: A 44-year-old female presented with right facial dysesthesia. Brain magnetic resonance imaging (MRI) showed a mass with a diameter of 3.2 cm that was hypointense on T1-weighted images (T1WI), hyperintense on T2-weighted images (T2WI), iso-to-hyperintense on diffusion-weighted (DW) images, and hyperintense on apparent diffusion coefficient (ADC) map (1...
June 9, 2017: World Neurosurgery
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
#16
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/28595230/-pulmonary-metastasis-of-sacral-chordoma-fifteen-years-after-resection-of-primary-site-report-of-a-case
#17
Tomomi Isono, Hiroyoshi Watanabe, Yumeta Shimazu, Nobuhisa Yamazaki, Hirokazu Tanaka, Masaharu Nakade
A 71-years-old man, who had undergone resection for sacral chordoma 15 years before, was admitted to our hospital to treat a nodule in the right middle lobe detected by computed tomography. The nodule was resected and was histologically diagnosed as lung-metastasis of chordoma.
June 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
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
#18
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/28593113/the-added-value-of-diffusion-magnetic-resonance-imaging-in-the-diagnosis-and-posttreatment-evaluation-of-skull-base-chordomas
#19
Ezgi Guler, Burce Ozgen, Melike Mut, Figen Soylemezoglu, Kader Karli Oguz
Objectives  To determine the use of diffusion-weighted imaging (DWI) in the pre- and posttreatment evaluation of skull base chordomas. Design  Retrospective study. Setting  Tertiary care university hospital. Participants  In total, 17 patients with histopathological diagnosis of chordoma who had magnetic resonance (MR) imaging and DWI were evaluated. Of them, 13 patients had posttreatment MR imaging including DWI. Main Outcome Measures  Three apparent diffusion coefficient (ADC) values were obtained from tumor, and an ADC value was measured from pons for the purpose of normalization...
June 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28593109/extent-of-endoscopic-resection-for-anterior-skull-base-tumors-an-mri-based-volumetric-analysis
#20
Ian J Koszewski, Gregory Avey, Azam Ahmed, Lucas Leonhard, Matthew R Hoffman, Timothy M McCulloch
Objective  To determine the volume of ventral skull base tumor removed following endoscopic endonasal (EEA) resection using MRI-based volumetric analysis and to evaluate the inter-rater reliability of such analysis. Design  Retrospective case series. Setting  Academic tertiary care hospital. Participants  EEA patients November 2012 to August 2015. Main Outcome Measures  Volumetric analysis of pre- and immediately postoperative MR imaging was performed independently by two investigators. The percentage of total tumor resected was evaluated according to resection goal and tumor type...
June 2017: Journal of Neurological Surgery. Part B, Skull Base
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