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Broz MT, Ko EY, Ishaya K, Xiao J, De Simone M, Hoi XP, Piras R, Gala B, Tessaro FHG, Karlstaedt A, Orsulic S, Lund AW, Chan KS, Guarnerio J. Metabolic targeting of cancer associated fibroblasts overcomes T-cell exclusion and chemoresistance in soft-tissue sarcomas. Nat Commun 2024; 15:2498. [PMID: 38509063 PMCID: PMC10954767 DOI: 10.1038/s41467-024-46504-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 02/29/2024] [Indexed: 03/22/2024] Open
Abstract
T cell-based immunotherapies have exhibited promising outcomes in tumor control; however, their efficacy is limited in immune-excluded tumors. Cancer-associated fibroblasts (CAFs) play a pivotal role in shaping the tumor microenvironment and modulating immune infiltration. Despite the identification of distinct CAF subtypes using single-cell RNA-sequencing (scRNA-seq), their functional impact on hindering T-cell infiltration remains unclear, particularly in soft-tissue sarcomas (STS) characterized by low response rates to T cell-based therapies. In this study, we characterize the STS microenvironment using murine models (in female mice) with distinct immune composition by scRNA-seq, and identify a subset of CAFs we termed glycolytic cancer-associated fibroblasts (glyCAF). GlyCAF rely on GLUT1-dependent expression of CXCL16 to impede cytotoxic T-cell infiltration into the tumor parenchyma. Targeting glycolysis decreases T-cell restrictive glyCAF accumulation at the tumor margin, thereby enhancing T-cell infiltration and augmenting the efficacy of chemotherapy. These findings highlight avenues for combinatorial therapeutic interventions in sarcomas and possibly other solid tumors. Further investigations and clinical trials are needed to validate these potential strategies and translate them into clinical practice.
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Affiliation(s)
- Marina T Broz
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Emily Y Ko
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Kristin Ishaya
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Jinfen Xiao
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Marco De Simone
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Xen Ping Hoi
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Roberta Piras
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Basia Gala
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Fernando H G Tessaro
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Anja Karlstaedt
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- David Geffen Medical School, Department of Medicine, University of California, Los Angeles, CA, USA
| | - Sandra Orsulic
- David Geffen Medical School, Department of Medicine, University of California, Los Angeles, CA, USA
- Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Amanda W Lund
- Ronald O. Perelman Department of Dermatology, NYU Grossman School of Medicine, New York, NY, USA
| | - Keith Syson Chan
- Department of Urology, Neal Cancer Center, Houston Methodist Research Institute, Houston, TX, USA
| | - Jlenia Guarnerio
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
- David Geffen Medical School, Department of Medicine, University of California, Los Angeles, CA, USA.
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
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Yang ZQ, Guo LY, Xiao KW, Zhang C, Wu MH, Yan FF, Cai L. Molecular characterization of ferroptosis in soft tissue sarcoma constructs a prognostic and immunotherapeutic signature through experimental and bioinformatics analyses. Aging (Albany NY) 2023; 15:11412-11447. [PMID: 37874682 PMCID: PMC10637810 DOI: 10.18632/aging.205133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 10/02/2023] [Indexed: 10/26/2023]
Abstract
Ferroptosis regulators have been found to affect tumor progression. However, studies focusing on ferroptosis and soft tissue sarcoma (STS) are rare. Somatic mutation, copy number variation, reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analysis, consensus clustering, differentially expressed genes analysis (DEGs), principal component analysis (PCA) and gene set enrichment analysis (GSEA) were used to identify and explore different ferroptosis modifications in STS. A nomogram was constructed to predict the prognosis of STS. Moreover, three immunotherapy datasets were used to assess the Fescore. Western blotting, siRNA transfection, EdU assay and reactive oxygen species (ROS) measurement were performed. 16 prognostic ferroptosis regulators were screened and significant differences were observed in somatic mutation, copy number variation (CNV) and RT-qPCR among these ferroptosis regulators. 2 different ferroptosis modification patterns were found (Fe cluster A and B). Fe cluster A with higher Fescore was correlated with p53 pathway and had better prognosis of STS (p = 0.002) while Fe cluster B with lower Fescore was correlated with angiogenesis and MYC pathway and showed a poorer outcome. Besides, the nomogram effectively predicted the outcome of STS and the Fescore could also well predict the prognosis of other 16 tumors and immunotherapy response. Downregulation of LOX also inhibited growth and increased ROS production in sarcoma cells. The molecular characterization of ferroptosis regulators in STS was explored and an Fescore was constructed. The Fescore quantified ferroptosis modification in STS patients and effectively predicted the prognosis of a variety of tumors, providing novel insights for precision medicine.
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Affiliation(s)
- Zhi-Qiang Yang
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, People’s Republic of China
| | - Liang-Yu Guo
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, People’s Republic of China
| | - Kang-Wen Xiao
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, People’s Republic of China
- School of Medicine, Washington University, St. Louis, MO 63110, USA
| | - Chong Zhang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430071, People’s Republic of China
| | - Min-Hao Wu
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, People’s Republic of China
| | - Fei-Fei Yan
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, People’s Republic of China
| | - Lin Cai
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, People’s Republic of China
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Casale R, De Angelis R, Coquelet N, Mokhtari A, Bali MA. The Impact of Edema on MRI Radiomics for the Prediction of Lung Metastasis in Soft Tissue Sarcoma. Diagnostics (Basel) 2023; 13:3134. [PMID: 37835878 PMCID: PMC10572878 DOI: 10.3390/diagnostics13193134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/03/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
INTRODUCTION This study aimed to evaluate whether radiomic features extracted solely from the edema of soft tissue sarcomas (STS) could predict the occurrence of lung metastasis in comparison with features extracted solely from the tumoral mass. MATERIALS AND METHODS We retrospectively analyzed magnetic resonance imaging (MRI) scans of 32 STSs, including 14 with lung metastasis and 18 without. A segmentation of the tumor mass and edema was assessed for each MRI examination. A total of 107 radiomic features were extracted for each mass segmentation and 107 radiomic features for each edema segmentation. A two-step feature selection process was applied. Two predictive features for the development of lung metastasis were selected from the mass-related features, as well as two predictive features from the edema-related features. Two Random Forest models were created based on these selected features; 100 random subsampling runs were performed. Key performance metrics, including accuracy and area under the ROC curve (AUC), were calculated, and the resulting accuracies were compared. RESULTS The model based on mass-related features achieved a median accuracy of 0.83 and a median AUC of 0.88, while the model based on edema-related features achieved a median accuracy of 0.75 and a median AUC of 0.79. A statistical analysis comparing the accuracies of the two models revealed no significant difference. CONCLUSION Both models showed promise in predicting the occurrence of lung metastasis in soft tissue sarcomas. These findings suggest that radiomic analysis of edema features can provide valuable insights into the prediction of lung metastasis in soft tissue sarcomas.
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Affiliation(s)
| | | | | | - Ayoub Mokhtari
- Institut Jules Bordet Hôpital Universitaire de Bruxelles, Université Libre de Bruxelles, 1070 Brussels, Belgium; (R.C.); (R.D.A.); (N.C.); (M.A.B.)
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Liang HY, Yang SF, Zou HM, Hou F, Duan LS, Huang CC, Xu JX, Liu SL, Hao DP, Wang HX. Deep Learning Radiomics Nomogram to Predict Lung Metastasis in Soft-Tissue Sarcoma: A Multi-Center Study. Front Oncol 2022; 12:897676. [PMID: 35814362 PMCID: PMC9265249 DOI: 10.3389/fonc.2022.897676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 05/18/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives To build and evaluate a deep learning radiomics nomogram (DLRN) for preoperative prediction of lung metastasis (LM) status in patients with soft tissue sarcoma (STS). Methods In total, 242 patients with STS (training set, n=116; external validation set, n=126) who underwent magnetic resonance imaging were retrospectively enrolled in this study. We identified independent predictors for LM-status and evaluated their performance. The minimum redundancy maximum relevance (mRMR) method and least absolute shrinkage and selection operator (LASSO) algorithm were adopted to screen radiomics features. Logistic regression, decision tree, random forest, support vector machine (SVM), and adaptive boosting classifiers were compared for their ability to predict LM. To overcome the imbalanced distribution of the LM data, we retrained each machine-learning classifier using the synthetic minority over-sampling technique (SMOTE). A DLRN combining the independent clinical predictors with the best performing radiomics prediction signature (mRMR+LASSO+SVM+SMOTE) was established. Area under the receiver operating characteristics curve (AUC), calibration curves, and decision curve analysis (DCA) were used to assess the performance and clinical applicability of the models. Result Comparisons of the AUC values applied to the external validation set revealed that the DLRN model (AUC=0.833) showed better prediction performance than the clinical model (AUC=0.664) and radiomics model (AUC=0.799). The calibration curves indicated good calibration efficiency and the DCA showed the DLRN model to have greater clinical applicability than the other two models. Conclusion The DLRN was shown to be an accurate and efficient tool for LM-status prediction in STS.
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Affiliation(s)
- Hao-yu Liang
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shi-feng Yang
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Hong-mei Zou
- Department of Radiology, The Third People’s Hospital of Qingdao, Qingdao, China
| | - Feng Hou
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Li-sha Duan
- Department of Radiology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Chen-cui Huang
- Department of Research Collaboration, Research and Development (R&D) Center, Beijing Deepwise & League of Philosophy Doctor (PHD) Technology Co., Ltd, Beijing, China
| | - Jing-xu Xu
- Department of Research Collaboration, Research and Development (R&D) Center, Beijing Deepwise & League of Philosophy Doctor (PHD) Technology Co., Ltd, Beijing, China
| | - Shun-li Liu
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, China
- *Correspondence: Shun-li Liu, ; Da-peng Hao, ; He-xiang Wang,
| | - Da-peng Hao
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, China
- *Correspondence: Shun-li Liu, ; Da-peng Hao, ; He-xiang Wang,
| | - He-xiang Wang
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, China
- *Correspondence: Shun-li Liu, ; Da-peng Hao, ; He-xiang Wang,
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Xiao KW, Yang ZQ, Yan X, Liu ZB, Yang M, Guo LY, Cai L. Molecular Characteristics of m6A Regulators and Tumor Microenvironment Infiltration in Soft Tissue Sarcoma: A Gene-Based Study. Front Bioeng Biotechnol 2022; 10:846812. [PMID: 35519620 PMCID: PMC9062003 DOI: 10.3389/fbioe.2022.846812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 03/22/2022] [Indexed: 11/13/2022] Open
Abstract
Background: N6-methyladenosine (m6A) methylation played a key role in tumor growth. However, the relationship between m6A and soft tissue sarcoma (STS) was still unclear. Methods: The characterization and patterns of m6A modification in STS (TCGA-SARC and GSE17674) were analyzed comprehensively through bioinformatics and real-time polymerase chain reaction (RT-PCR). The effects of different m6A modification patterns on prognosis and immune infiltration of STS were further explored. Differentially expressed gene (DEG) analysis was performed. Moreover, an m6Ascore was constructed by principal component analysis (PCA). In addition, two immunotherapy datasets (IMvigor210 and GSE78220) and a sarcoma dataset (GSE17618) were used to evaluate the m6Ascore. Results: Huge differences were found in somatic mutation, CNV, and expression of 25 m6A regulators in STS. Two modification patterns (A and B) in STS were further identified and the m6A cluster A showed a better clinical outcome with a lower immune/stromal score compared with the m6A cluster B (p < 0.050).In addition to , most STS samples from m6A cluster A showed a high m6Ascore, which was related to mismatch repair and a better prognosis of STS (p < 0.001). In contrast, the m6A cluster B, characterized by a low m6Ascore, was related to the MYC signaling pathway, which led to a poor prognosis of STS. A high m6Ascore also contributed to a better outcome of PD-1/PD-L1 blockade immunotherapy. Conclusion: The modification patterns of 25 m6A regulators in the STS microenvironment were explored comprehensively. The novel m6Ascore effectively predicted the characteristics of the tumor microenvironment (TME) and outcome in STS and provided novel insights for future immunotherapy.
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Affiliation(s)
- Kang-Wen Xiao
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhi-Qiang Yang
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xin Yan
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhi-Bo Liu
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Min Yang
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Liang-Yu Guo
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lin Cai
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, China
- *Correspondence: Lin Cai,
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Radiomics of Musculoskeletal Sarcomas: A Narrative Review. J Imaging 2022; 8:jimaging8020045. [PMID: 35200747 PMCID: PMC8876222 DOI: 10.3390/jimaging8020045] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/31/2022] [Accepted: 02/10/2022] [Indexed: 12/23/2022] Open
Abstract
Bone and soft-tissue primary malignant tumors or sarcomas are a large, diverse group of mesenchymal-derived malignancies. They represent a model for intra- and intertumoral heterogeneities, making them particularly suitable for radiomics analyses. Radiomic features offer information on cancer phenotype as well as the tumor microenvironment which, combined with other pertinent data such as genomics and proteomics and correlated with outcomes data, can produce accurate, robust, evidence-based, clinical-decision support systems. Our purpose in this narrative review is to offer an overview of radiomics studies dealing with Magnetic Resonance Imaging (MRI)-based radiomics models of bone and soft-tissue sarcomas that could help distinguish different histotypes, low-grade from high-grade sarcomas, predict response to multimodality therapy, and thus better tailor patients’ treatments and finally improve their survivals. Although showing promising results, interobserver segmentation variability, feature reproducibility, and model validation are three main challenges of radiomics that need to be addressed in order to translate radiomics studies to clinical applications. These efforts, together with a better knowledge and application of the “Radiomics Quality Score” and Image Biomarker Standardization Initiative reporting guidelines, could improve the quality of sarcoma radiomics studies and facilitate radiomics towards clinical translation.
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Vallières M, Serban M, Benzyane I, Ahmed Z, Xing S, El Naqa I, Levesque IR, Seuntjens J, Freeman CR. Investigating the role of functional imaging in the management of soft-tissue sarcomas of the extremities. PHYSICS & IMAGING IN RADIATION ONCOLOGY 2018; 6:53-60. [PMID: 33458389 PMCID: PMC7807871 DOI: 10.1016/j.phro.2018.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 04/06/2018] [Accepted: 05/08/2018] [Indexed: 11/16/2022]
Abstract
Background and purpose In this work, we validate a texture-based model computed from positron emission tomography (PET) and magnetic resonance imaging (MRI) for the prediction of lung metastases in soft-tissue sarcomas (STS). We explore functional imaging at different treatment time points and evaluate the feasibility of radiotherapy dose painting as a potential treatment strategy for patients with higher metastatic risk. Materials and methods We acquired fluorodeoxyglucose (FDG)-PET, fluoromisonidazole (FMISO)-PET, diffusion weighting (DW)-MRI and dynamic contrast enhanced (DCE)-MRI data for 18 patients with extremity STS before, during, and after pre-operative radiotherapy. We tested the lung metastases prediction model using pre-treatment images. We evaluated the feasibility of dose painting using volumetric arc therapy (VMAT) via treatment re-planning with a prescription of 50 Gy to the planning target volume (PTV50Gy) and boost doses of 60 Gy to the FDG hypermetabolic gross tumour volume (GTV60Gy) and 65 Gy to the low-perfusion DCE-MRI hypoxic GTV contained within the GTV60Gy (GTV65Gy). Results The texture-based model for lung metastases prediction reached an area under the curve (AUC), sensitivity, specificity and accuracy of 0.71, 0.75, 0.85 and 0.82, respectively. Dose painting resulted in adequate coverage and homogeneity in the re-planned treatments: D95% to the PTV50Gy, GTV60Gy and GTV65Gy were 50.0 Gy, 60.3 Gy and 65.4 Gy, respectively. Conclusions Textural biomarkers extracted from FDG-PET and MRI could be useful to identify STS patients that might benefit from dose escalation. The feasibility of treatment planning with double boost levels to intratumoural GTV functional sub-volumes was established.
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Affiliation(s)
- Martin Vallières
- Medical Physics Unit, McGill University, Cedars Cancer Centre, McGill University Health Centre – Glen Site, 1001 boulevard Décarie, Montréal, QC H4A 3J1, Canada
- Corresponding author.
| | - Monica Serban
- Medical Physics Unit, McGill University, Cedars Cancer Centre, McGill University Health Centre – Glen Site, 1001 boulevard Décarie, Montréal, QC H4A 3J1, Canada
| | - Ibtissam Benzyane
- Medical Physics Unit, McGill University, Cedars Cancer Centre, McGill University Health Centre – Glen Site, 1001 boulevard Décarie, Montréal, QC H4A 3J1, Canada
| | - Zaki Ahmed
- Medical Physics Unit, McGill University, Cedars Cancer Centre, McGill University Health Centre – Glen Site, 1001 boulevard Décarie, Montréal, QC H4A 3J1, Canada
| | - Shu Xing
- Medical Physics Unit, McGill University, Cedars Cancer Centre, McGill University Health Centre – Glen Site, 1001 boulevard Décarie, Montréal, QC H4A 3J1, Canada
| | - Issam El Naqa
- Department of Radiation Oncology, Physics Division, University of Michigan, 519 W. Williman St. Argus Bldg, Ann Arbor, MI 48103-4943, USA
| | - Ives R. Levesque
- Medical Physics Unit, McGill University, Cedars Cancer Centre, McGill University Health Centre – Glen Site, 1001 boulevard Décarie, Montréal, QC H4A 3J1, Canada
- Research Institute of the McGill University Health Centre, 1001 boulevard Décarie, Montréal, QC H4A 3J1, Canada
| | - Jan Seuntjens
- Medical Physics Unit, McGill University, Cedars Cancer Centre, McGill University Health Centre – Glen Site, 1001 boulevard Décarie, Montréal, QC H4A 3J1, Canada
- Research Institute of the McGill University Health Centre, 1001 boulevard Décarie, Montréal, QC H4A 3J1, Canada
| | - Carolyn R. Freeman
- Research Institute of the McGill University Health Centre, 1001 boulevard Décarie, Montréal, QC H4A 3J1, Canada
- Department of Radiation Oncology, Cedars Cancer Centre, McGill University Health Centre – Glen Site, 1001 boulevard Décarie, Montréal, QC H4A 3J1, Canada
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Severino R, Severino P. Reasons why a second radiological opinion is advisable: a case report of a misreported crural synovial cell sarcoma. J Surg Case Rep 2017; 2017:rjx046. [PMID: 28458852 PMCID: PMC5400482 DOI: 10.1093/jscr/rjx046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 03/01/2017] [Indexed: 11/12/2022] Open
Abstract
Synovial sarcoma (SS) is a rare condition that accounts for 5–10% of all soft-tissue sarcomas (STS). SS locates most frequently near the joints, in particular at the lower extremities, but it can also occur in other locations. We report a case of a 42-year-old male complaining of a slow-growth mass on his right thigh, reported as a femoral nerve shwannoma on the basis of the preoperative radiological investigations, which revealed to be a monophasic SS on the histological examination. During the surgical procedure, the assistance of vascular surgeons was required to reconstruct the wall of the femoral vein underlying the tumor, that was pathologically thickened, and communicated with the tumoral capsule. Although extremely rare, SS should be considered in the differential diagnosis of peripheral nerve sheath tumors, in particular if next to a large vein at the lower extremities.
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Affiliation(s)
- Rocco Severino
- Department of Neurosurgery, Anthea Hospital, Bari, Italy.,Department of Neurosurgery, 'Federico II' University, Naples, Italy
| | - Paolo Severino
- Department of Neurosurgery, Anthea Hospital, Bari, Italy
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Clarke MJ, Price DL, Cloft HJ, Segura LG, Hill CA, Browning MB, Brandt JM, Lew SM, Foy AB. En bloc resection of a C-1 lateral mass osteosarcoma: technical note. J Neurosurg Pediatr 2016; 18:46-52. [PMID: 26966885 DOI: 10.3171/2015.12.peds15496] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Osteosarcoma is an aggressive primary bone tumor. It is currently treated with multimodality therapy including en bloc resection, which has been demonstrated to confer a survival benefit over intralesional resection. The authors present the case of an 8-year-old girl with a C-1 lateral mass osteosarcoma, which was treated with a 4-stage en bloc resection and spinal reconstruction. While technically complex, the feasibility of en bloc resection for spinal osteosarcoma should be explored in the pediatric population.
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Affiliation(s)
| | | | | | | | | | - Meghen B Browning
- Department of Pediatric Oncology, Medical College of Wisconsin, Milwaukee
| | - Jon M Brandt
- Department of Pediatric Oncology, St. Vincent Hospital, Green Bay; and
| | - Sean M Lew
- Department of Pediatric Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Andrew B Foy
- Department of Pediatric Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin
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Dekutoski MB, Clarke MJ, Rose P, Luzzati A, Rhines LD, Varga PP, Fisher CG, Chou D, Fehlings MG, Reynolds JJ, Williams R, Quraishi NA, Germscheid NM, Sciubba DM, Gokaslan ZL, Boriani S, _ _. Osteosarcoma of the spine: prognostic variables for local recurrence and overall survival, a multicenter ambispective study. J Neurosurg Spine 2016; 25:59-68. [DOI: 10.3171/2015.11.spine15870] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE
Primary spinal osteosarcomas are rare and aggressive neoplasms. Poor outcomes can occur, as obtaining marginal margins is technically demanding; further Enneking-appropriate en bloc resection can have significant morbidity. The goal of this study is to identify prognostic variables for local recurrence and mortality in surgically treated patients diagnosed with a primary osteosarcoma of the spine.
METHODS
A multicenter ambispective database of surgically treated patients with primary spine osteosarcomas was developed by AOSpine Knowledge Forum Tumor. Patient demographic, diagnosis, treatment, perioperative morbidity, local recurrence, and cross-sectional survival data were collected. Tumors were classified in 2 cohorts: Enneking appropriate (EA) and Enneking inappropriate (EI), as defined by pathology margin matching Enneking-recommended surgical margins. Prognostic variables were analyzed in reference to local recurrence and survival.
RESULTS
Between 1987 and 2012, 58 patients (32 female patients) underwent surgical treatment for primary spinal osteosarcoma. Patients were followed for a mean period of 3.5 ± 3.5 years (range 0.5 days to 14.3 years). The median survival for the entire cohort was 6.7 years postoperative. Twenty-four (41%) patients died, and 17 (30%) patients suffered a local recurrence, 10 (59%) of whom died. Twenty-nine (53%) patients underwent EA resection while 26 (47%) patients underwent EI resection with a postoperative median survival of 6.8 and 3.7 years, respectively (p = 0.048). EI patients had a higher rate of local recurrence than EA patients (p = 0.001). Patient age, previous surgery, biopsy type, tumor size, spine level, and chemotherapy timing did not significantly influence recurrence and survival.
CONCLUSIONS
Osteosarcoma of the spine presents a significant challenge, and most patients die in spite of aggressive surgery. There is a significant decrease in recurrence and an increase in survival with en bloc resection (EA) when compared with intralesional resection (EI). The effect of adjuvant and neoadjuvant chemotherapeutics, as well as method of biopsy, requires further exploration.
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Affiliation(s)
| | | | - Peter Rose
- 3Orthopedics, Mayo Clinic, Rochester, Minnesota
| | - Alessandro Luzzati
- 4Oncologia Ortopedica e Ricostruttiva del Rachide, Istituto Ortopedico Galeazzi, Milan, Italy
| | - Laurence D. Rhines
- 5Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Peter P. Varga
- 6National Center for Spinal Disorders and Buda Health Center, Budapest, Hungary
| | - Charles G. Fisher
- 7Division of Spine, Department of Orthopaedics, University of British Columbia and Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Dean Chou
- 8Department of Neurological Surgery, University of California, San Francisco, California
| | - Michael G. Fehlings
- 9Division of Neurosurgery, Department of Surgery, University of Toronto and Toronto Western Hospital, Toronto, Ontario, Canada
| | - Jeremy J. Reynolds
- 10Spinal Division, Oxford University Hospitals NHS Trust, Oxford, United Kingdom
| | - Richard Williams
- 11Department of Orthopaedics, Princess Alexandra Hospital, Brisbane, Queensland, Australia
| | - Nasir A. Quraishi
- 12Center for Spine Studies and Surgery, Queens Medical Centre, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | | | - Daniel M. Sciubba
- 14Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ziya L. Gokaslan
- 15Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island; and
| | - Stefano Boriani
- 16Unit of Oncologic and Degenerative Spine Surgery, Rizzoli Institute, Bologna, Italy
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Khanevich MD, Manikhas GM, Vashkurov SM, Kukanov MA, Khazov AV. COMBINATION OF VESSEL EMBOLIZATION AND CRYOTHERAPY IN SURGICAL TREATMENT OF SOFT TISSUE SARCOMAS. ACTA ACUST UNITED AC 2015. [DOI: 10.24884/0042-4625-2015-174-4-39-44] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The article analyzed the results of surgical treatment of 153 patients with soft tissue sarcomas. The surgery was complemented by preoperative embolization of vessels, which supplied the tumor, cryotherapy on the tumor and postoperative wound in 72 patients of main group. The control group consisted of 81 patients and there weren’t any perioperative actions. It was shown, that more than 80% of soft tissue sarcomas had the main and mixed type of tumor blood supply. Partial and full reduction of blood flow could be obtained by embolization of the tumor in more than 50% patients. Combination of surgical and preoperative embolization of vessels and cryotherapy decreased the rate of local recurrence and increased the quantity of organosafe interventions.
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Affiliation(s)
| | | | | | - M. A. Kukanov
- St. Petersburg Municipal clinical oncologic dispensary
| | - A. V. Khazov
- St. Petersburg Municipal clinical oncologic dispensary
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12
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Vallières M, Freeman CR, Skamene SR, El Naqa I. A radiomics model from joint FDG-PET and MRI texture features for the prediction of lung metastases in soft-tissue sarcomas of the extremities. Phys Med Biol 2015; 60:5471-96. [PMID: 26119045 DOI: 10.1088/0031-9155/60/14/5471] [Citation(s) in RCA: 560] [Impact Index Per Article: 62.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This study aims at developing a joint FDG-PET and MRI texture-based model for the early evaluation of lung metastasis risk in soft-tissue sarcomas (STSs). We investigate if the creation of new composite textures from the combination of FDG-PET and MR imaging information could better identify aggressive tumours. Towards this goal, a cohort of 51 patients with histologically proven STSs of the extremities was retrospectively evaluated. All patients had pre-treatment FDG-PET and MRI scans comprised of T1-weighted and T2-weighted fat-suppression sequences (T2FS). Nine non-texture features (SUV metrics and shape features) and forty-one texture features were extracted from the tumour region of separate (FDG-PET, T1 and T2FS) and fused (FDG-PET/T1 and FDG-PET/T2FS) scans. Volume fusion of the FDG-PET and MRI scans was implemented using the wavelet transform. The influence of six different extraction parameters on the predictive value of textures was investigated. The incorporation of features into multivariable models was performed using logistic regression. The multivariable modeling strategy involved imbalance-adjusted bootstrap resampling in the following four steps leading to final prediction model construction: (1) feature set reduction; (2) feature selection; (3) prediction performance estimation; and (4) computation of model coefficients. Univariate analysis showed that the isotropic voxel size at which texture features were extracted had the most impact on predictive value. In multivariable analysis, texture features extracted from fused scans significantly outperformed those from separate scans in terms of lung metastases prediction estimates. The best performance was obtained using a combination of four texture features extracted from FDG-PET/T1 and FDG-PET/T2FS scans. This model reached an area under the receiver-operating characteristic curve of 0.984 ± 0.002, a sensitivity of 0.955 ± 0.006, and a specificity of 0.926 ± 0.004 in bootstrapping evaluations. Ultimately, lung metastasis risk assessment at diagnosis of STSs could improve patient outcomes by allowing better treatment adaptation.
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Affiliation(s)
- M Vallières
- Medical Physics Unit, McGill University, 845 Rue Sherbrooke O, Montreal QC H3A 0G4, Canada
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13
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Akatsuka J, Suzuki Y, Hamasaki T, Kimura G, Osawa S, Kondo Y. Spindle cell sarcoma of the epididymis. Int Cancer Conf J 2014. [DOI: 10.1007/s13691-013-0109-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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15
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Vohra NA, Turaga KK, Gonzalez RJ, Conley A, Reed D, Bui MM, Cheong D, Letson DG, Zager JS. The use of isolated limb infusion in limb threatening extremity sarcomas. Int J Hyperthermia 2012. [PMID: 23205633 DOI: 10.3109/02656736.2012.740548] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
UNLABELLED This paper reports a single-institution experience with the use of isolated limb infusion for limb salvage in locally advanced, unresectable, recurrent limb threatening soft tissue sarcomas. BACKGROUND Locally advanced, limb threatening soft tissue sarcomas (STS) pose a significant treatment challenge. We report our experience using isolated limb infusion (ILI) in patients with unresectable extremity STS. METHODS A total of 22 patients with extremity STS underwent 26 ILIs with melphalan and dactinomycin. Patient characteristics, intra-operative parameters and toxicity were recorded. Outcome measures included limb-salvage and in-field response rates. RESULTS Of the 19 lower and 7 upper extremity ILIs, Wieberdink grade III toxicity or less was observed in all. Median followup was 11 months. A total of 17 patients were evaluable at 3 months post-ILI with an overall response rate of 42%. Four (24%) had complete response (CR), three (18%) partial response (PR), three (18%) stable disease (SD) and seven (41%) progressive disease (PD). Twelve of 17 (71%) underwent successful limb preservation at a median of 9 months post-ILI. Two (12%) were downstaged to resectable disease and remain showing no evidence of disease (NED) after surgery at 30 and 22 months post-ILI. CONCLUSIONS ILI is an attractive modality that provides regional disease control and limb preservation in patients with limb threatening sarcoma. Although short-term results appear encouraging, long-term follow-up is needed to fully assess the role of ILI in unresectable extremity STS.
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Affiliation(s)
- Nasreen A Vohra
- Department of Sarcoma Oncology, Moffitt Cancer Center, Tampa, Florida 33612, USA
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Sarcomas other than Kaposi sarcoma occurring in immunodeficiency: interpretations from a systematic literature review. Curr Opin Oncol 2012; 24:537-46. [PMID: 22729152 DOI: 10.1097/cco.0b013e328355e115] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
PURPOSE OF REVIEW In immunodeficiency, an increased sarcoma risk is confirmed for Kaposi's sarcoma. Whether rates of other sarcoma subtypes are elevated in the setting of immunodeficiency is not known. We therefore reviewed published case reports on HIV and AIDS patients and organ transplant recipients with sarcomas. For comparison, we assessed sarcomas in the U.S. general population using Surveillance Epidemiology End Results (SEER) data. RECENT FINDINGS A total of 176 non-Kaposi sarcoma were identified, 75 in people with HIV and AIDS and 101 in transplant recipients. Leiomyosarcomas (n = 101) were the most frequently reported sarcomas, followed by angiosarcomas (n = 23) and fibrohistiocytic tumors (n = 17). Leiomyosarcomas were reported with two age peaks, in children and young adults. Epstein-Barr virus (EBV) was detected in the tumor cells in 85 and 88% of leiomyosarcomas in HIV-infected people and transplant recipients, respectively. Angiosarcomas and fibrohistiocytic tumors were most frequently reported in men. Among kidney transplant recipients, 20% of sarcomas arose at the site of an arteriovenous fistula. In comparison, leiomyoscarcomas, angiosarcomas, and fibrohistiocytic tumors comprised 16.9, 3.8, and 18.7% of sarcomas in the U.S. general population. SUMMARY Leiomyosarcoma and angiosarcoma may occur disproportionately in immunodeficiency. Leiomyosarcomas appear causatively linked to EBV, whereas angiosarcomas might be correlated with an arteriovenous fistula. Additional studies are necessary to understand the contribution of immunodeficiency to the cause of these sarcomas.
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Alguraan Z, Agcaoglu O, El-Hayek K, Hamrahian AH, Siperstein A, Berber E. Retroperitoneal masses mimicking adrenal tumors. Endocr Pract 2012; 18:335-41. [PMID: 22068255 DOI: 10.4158/ep11240.or] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To report 10 cases of neoplasms that were initially thought to be primarily adrenal-derived masses but were later confirmed as tumors of a different origin. METHODS Between 2000 and 2011, a total of 229 patients underwent adrenalectomy at our institution. Of this overall group, 10 patients had retroperitoneal pathologic conditions mimicking adrenal tumors. Using an institutional review board-approved database, we reviewed the clinical, biochemical, and radiologic characteristics of these 10 patients. RESULTS The study cohort consisted of 4 male and 6 female patients. The mean age of these 10 patients was 48 years. The pathologic conditions included schwannoma (n = 3), leiomyosarcoma (n = 2), and 1 each of metastatic angiosarcoma, metastatic granulosa cell tumor, retroperitoneal hematoma, perivascular epithelioid cell tumor, and bronchogenic cyst. The patient with angiosarcoma had elevated plasma and urine catecholamines and a positive metaiodobenzylguanidine scan, whereas the others had normal findings on biochemical work-up. A percutaneous biopsy was performed preoperatively in 2 patients. All patients, except the patient with hematoma, underwent abdominal exploration, which was laparoscopic in 5, open in 2, and robotic in 2. With exclusion of the patients with angiosarcoma and hematoma, resection was possible in all the remaining patients. CONCLUSION In this report we describe our experience with retroperitoneal masses mimicking adrenal tumors. Increased awareness of these unusual pathologic conditions is important for appropriate clinical management of these tumors. The presentation of the patients and the surgical management of these individual pathologic entities are highlighted.
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Affiliation(s)
- Ziyad Alguraan
- Division of Endocrine Surgery, Endocrinology and Metabolism Institute, Cleveland Clinic, Cleveland, Ohio, USA
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Smith CA, Martinez SR, Tseng WH, Tamurian RM, Bold RJ, Borys D, Canter RJ. Predicting Survival for Well-Differentiated Liposarcoma: The Importance of Tumor Location. J Surg Res 2012; 175:12-7. [DOI: 10.1016/j.jss.2011.07.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 07/07/2011] [Accepted: 07/11/2011] [Indexed: 10/17/2022]
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Katz SC, Baldwin K, Karakousis G, Moraco N, Buglino A, Singer S, Brennan MF. Soft tissue sarcoma diagnosed subsequent to lymphoma is associated with prior radiotherapy and decreased survival. Cancer 2011; 117:4756-63. [PMID: 21465463 DOI: 10.1002/cncr.26105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Revised: 01/11/2011] [Accepted: 01/20/2011] [Indexed: 11/11/2022]
Abstract
BACKGROUND Cancer survivors are at increased risk for second malignancies, and vigilance is thus required. The authors sought to determine whether there was an association among lymphoma, sarcoma, and the associated treatments for these diseases. METHODS From the authors' prospective soft tissue sarcoma (STS) database of 8240 patients, they identified 112 patients with STS and lymphoma treated from 1982 to 2009 who had complete follow-up data. They examined the importance of the initial diagnosis in patients with both STS and lymphoma, in addition to determining the role of radiation therapy, a known inducer of sarcoma. RESULTS Review of their sarcoma, gastric, urology, breast, and gynecology databases revealed that lymphoma (95%) or leukemia (5%) occurred in 1.6% of STS patients in comparison to 0.5% of patients in the other databases (P < .01; odds ratio, 3.1; 95% confidence interval, 2.6-3.8). Patients diagnosed with STS only were more likely to die of disease at 10 years compared with those with STS and lymphoma (P = .006), but this difference was not significant when patients presenting with recurrence or metastases were excluded. Among patients with lymphoma and STS, lymphoma was the first diagnosis in 71% of patients. Median survival after STS diagnosis was shorter when lymphoma was the initial diagnosis (67 vs 170 months, P = .002), and these patients were more likely to have radiation-associated STS (44% vs 3%, P < .001). CONCLUSIONS There was a 3-fold higher incidence of lymphoma in STS patients compared with other solid tumors. The poor prognosis of those diagnosed with both STS and lymphoma was most likely a consequence of prior irradiation.
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Affiliation(s)
- Steven C Katz
- Gastric and Mixed Tumor Service, Memorial Sloan-Kettering Cancer Center, New York, New York, USA
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Ognjanovic S, Olivier M, Bergemann TL, Hainaut P. Sarcomas in TP53 germline mutation carriers: a review of the IARC TP53 database. Cancer 2011; 118:1387-96. [PMID: 21837677 DOI: 10.1002/cncr.26390] [Citation(s) in RCA: 154] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Revised: 06/06/2011] [Accepted: 06/07/2011] [Indexed: 12/23/2022]
Abstract
BACKGROUND Sarcoma is the index diagnosis of Li-Fraumeni syndrome (LFS), a familial predisposition to cancer that also includes brain cancer, breast cancer, and adrenal cortical carcinoma. Germline mutations in the TP53 gene are detected in approximately 80% of families that fulfill LFS criteria and in 15% to 25% of families that fulfill criteria for Li-Fraumeni-like syndrome (LFS), a group of related syndromes with broader clinical criteria. METHODS The authors of this report used the International Agency for Research on Cancer TP53 database to analyze the types, age at onset and mutation patterns of sarcoma in TP53 mutation carriers. Those data were compared with sarcoma types in the general population of Caucasians using data from the National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) Program. RESULTS Overall, sarcomas represented 25% of tumors in TP53 mutation carriers, and 95.6% occurred before age 50 years compared with 38.3% before age 50 years in the SEER data set. Sarcomas were more likely to be rhabdomyosarcoma in carriers aged <5 years (odds ratio [OR], 11.6; 95% confidence interval [CI], 6.1-21.9) and osteosarcoma in carriers at any age (aged <20 years: OR, 1.41; 95% CI, 1.02-1.94; age >20 years: OR, 4.61; 95% CI, 2.72-7.83). Early sarcoma (at age <20 years) was associated with missense mutations in exons encoding the DNA-binding domain of p53 protein. Conversely, p53 null mutations (frameshift, splice sites, nonsense) and mutations outside the DNA-binding domain were associated with leiomyosarcoma (OR, 10.1; 95% CI, 3.4-29.9), a type of sarcoma that occurred after age 20 years. CONCLUSIONS The current results further demonstrated genotype-phenotype correlations and age-dependent variations in sarcoma types in carriers of germline TP53 mutations.
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Affiliation(s)
- Simona Ognjanovic
- Division of Pediatric Epidemiology and Clinical Research, University of Minnesota, Minneapolis, Minnesota, USA.
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Zong XY, Yu Y, Yang HJ. Oxaliplatin-dacarbazine combination chemotherapy for the treatment of advanced soft tissue sarcoma of the limbs. J Exp Clin Cancer Res 2009; 28:119. [PMID: 19709417 PMCID: PMC2739518 DOI: 10.1186/1756-9966-28-119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Accepted: 08/26/2009] [Indexed: 11/10/2022] Open
Abstract
Background This study was designed to explore the feasibility, safety, and outcomes of pre-operative oxaliplatin-dacarbazine combination therapy for the treatment of advanced soft tissue sarcoma (STS) of the limb. Patients and Methods Between November 2005 and November 2008, 31 patients with advanced limb STS classified with stage IV STS were randomly assigned into experimental or control groups, and both were given 2 cycles of chemotherapy before undergoing surgery. The regimen for the experimental group was oxaliplatin (120 mg/m2, d1) in combination with dacarbazine (175 mg/m2, d1-3), while that for the control group was a standard vincristine, epirubicin, cyclophosphamide therapy. Operations were carried out four weeks after the second chemotherapy cycle, followed by another 2-4 more chemotherapy cycles of the previous regimen. Results Following preoperative chemotherapy, the experimental group exhibited a significant improvement in tumor regression compared to controls. Both regimens were well-tolerated, and no significant differences in adverse reactions were noted. At a median follow-up of 24 months, 28 patients were still alive and had normal limb function. The progression free survival rate of the experimental group was significantly higher than that of the control group (10/15 vs. 4/16, p < 0.05). Conclusion Oxaliplatin- dacarbazine neoadjuvant/adjuvant chemotherapy improved the prognosis of patients with advanced limb STS in comparison with vincristine, epirubicin, cyclophosphamide combination therapy.
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Affiliation(s)
- Xiang-Yun Zong
- Department of Surgical Oncology, Zhejiang Provincial Cancer Hospital, Hangzhou, PR China.
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Rao G, Suki D, Chakrabarti I, Feiz-Erfan I, Mody MG, McCutcheon IE, Gokaslan Z, Patel S, Rhines LD. Surgical management of primary and metastatic sarcoma of the mobile spine. J Neurosurg Spine 2008; 9:120-8. [DOI: 10.3171/spi/2008/9/8/120] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Object
Sarcomas of the spine are a challenging problem due to their frequent and extensive involvement of multiple spinal segments and high recurrence rates. Gross-total resection to negative margins, with preservation of neurological function and palliation of pain, is the surgical goal and may be achieved using either intralesional resection or en bloc excision. The authors report outcomes of surgery for primary and metastatic sarcomas of the mobile spine in a large patient series.
Methods
A retrospective review of patients undergoing resection for sarcomas of the mobile spine between 1993 and 2005 was undertaken. Sarcomas were classified by histology study results and as either primary or metastatic. Details of the surgical approach, levels of involvement, and operative complications were recorded. Outcome measures included neurological function, palliation of pain, local recurrence, and overall survival.
Results
Eighty patients underwent 110 resections of either primary or metastatic sarcomas of the mobile spine. Twenty-nine lesions were primary sarcomas (36%) and 51 were metastatic sarcomas (64%). Intralesional resections were performed in 98 surgeries (89%) and en bloc resections were performed in 12 (11%). Median survival from surgery for all patients was 20.6 months. Median survival for patients with a primary sarcoma of the spine was 40.2 months and was 17.3 months for patients with a metastatic sarcoma. Predictors of improved survival included a chondrosarcoma histological type and a better preoperative functional status, whereas osteosarcoma and a high-grade tumor were negative influences on survival. Multivariate analysis showed that only a high-grade tumor was an independent predictor of shorter overall survival. American Spinal Injury Association scale grades were maintained or improved in 97% of patients postoperatively, and there was a significant decrease in pain scores postoperatively. No significant differences in survival or local recurrence rates between intralesional or en bloc resections for either primary or metastatic spine sarcomas were found.
Conclusions
Surgery for primary or metastatic sarcoma of the spine is associated with an improvement in neurological function and palliation of pain. The results of this study show a significant difference in patient survival for primary versus metastatic spine sarcomas. The results do not show a statistically significant benefit in survival or local recurrence rates for en bloc versus intralesional resections for either metastatic or primary sarcomas of the spine, but this may be due to the small number of patients undergoing en bloc resections.
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Affiliation(s)
| | | | | | | | | | | | - Ziya Gokaslan
- 2Department of Neurosurgery, The Johns Hopkins Hospital, Baltimore, Maryland
| | - Shreyaskumar Patel
- 3Sarcoma Medical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas; and
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Pérez Romasanta LA, Montero Luis A, Verges Capdevila R, Mariño Cotelo A, Rico Pérez JM. Centralised treatment of soft tissue sarcomas in adults. Clin Transl Oncol 2008; 10:102-10. [PMID: 18258509 DOI: 10.1007/s12094-008-0162-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The clinical research developed in specialised centres and oncologic cooperative groups has permitted various scientific societies to collect recommendations used in the treatment of soft tissue sarcomas (STS) and incorporate them into clinical practice guidelines (CPG). Some studies have been conducted in diverse healthcare ambits to assess the influence of CPG. This revision of the medical literature analyses the impact that healthcare management -centralised or otherwise- and clinical practice in conformity with CPG have on the clinical outcome variables of STS. Eight CPG have been identified, as well as 12 conformity studies or audits. These conformity studies and audits demonstrate that the grade of adaptation of medical interventions with CPG, medical healthcare in reference centres and procedures of referrals to these centres, as well as the process of organising healthcare teams into Sarcoma Committees, have a significant influence on clinical outcome. We can conclude that excellent healthcare of STS implies the adaptation of healthcare practice to CPG, the existence of Reference Centres guided by Sarcoma Committees, and the observance of strict referral procedures within the Healthcare Area.
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